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OfflineBrownBear
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BrownBear's Corncob Tek * 9
    #27336817 - 06/05/21 10:02 PM (2 years, 9 months ago)

Corncob is my go to substrate. I typically use a 60% corncob/40% coir mixture. It has given me great results.



For the 60% corncob/40% coir substrate I use 1 small brick of coir, 2 full quarts of corncob pellets and 7 qts of water. This recipe makes 18 qts of substrate.

No one in mush cult seems to be familiar with corncob as a viable substrate. With this tek I would like to prove that corncob can be used as a stand alone bulk substrate and not just a additive or a substitution for verm or something.

Paul Stamets wrote about it in one of his books. Here is a short exerpt from the book.








Fortunately for me and hopefully others who give it a try, it now comes in a shredded and pelletized form. This makes prep super easy. For some, the one downside is that it must be heat treated. I used warm tap water to hydrate it the first time I used it. Ran a test in a container of just hydrated pellets and I ended up with cobweb mold a week later. I like hydrating the corncob and coir with boiling water anyway. I have used corncob based substrate that was prepared with boiling water and after a week of sitting before using it, it colonized and fruited with no problems.

A 40# bag is like $9.95 at tractor supply. Each 40# bag will expand to 140 qts of hydrated substrate.



For this tek, I am going to use 100% corncob pellets and water. That's it. I am also going to run 2x 64 qt tubs. Full size monotubs aren't really my thing but since a majority of folk around here use full size monotubs, I am going to use them for this particular tek.



I use a 24 qt stock pot to hydrate my substrate. This recipe makes 30 qts of substrate. You maybe wondering how you can fit 30 qts of substrate in a 24 qt pot. Even though the pellets hydrate and expand, it still stays well compact inside the pot. When you remove the corncob from the pot and fluff it before using, it will expand the rest of the way.

6 quarts corncob pellets
9 quarts of tap water

I pre measure my pellets. Bring water to a rolling boil. Turn off burner. Add the pellets. Put lid on. Take the pot off the burner. Let it sit until its cool enough to handle without being burned. This typically takes around 6 hours.

This is what it looks like when hydrated to field capacity.

https://giphy.com/gifs/ZU7vTBsIocyZk3ZZYN



Each 64 qt monotub will receive 10 qts of corncob substrate, 4.5 qts of ESS wheat spawn and just enough corncob to cover the top.




5 days after spawning


I began to see contamination on day 6.



I will continue to seek the limitations of this substrate. Through this thread, we will continue to discover all of its uses within this hobby. Thank you to all who have participated and will continue to participate.

Edited by BrownBear (06/13/21 03:10 PM)

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OfflineTheMagicConch
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27336837 - 06/05/21 10:31 PM (2 years, 9 months ago)

Damn I never thought of corn cob as a substrate. Nice tek! Will be following

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Invisiblealaskappalachian
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Re: BrownBear's Corncob Tek [Re: TheMagicConch]
    #27336846 - 06/05/21 10:51 PM (2 years, 9 months ago)

Ah hell yeah can't wait to try this. Think I saw a comparable product at my local store...  Tracking.


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Invisibleelpico
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Re: BrownBear's Corncob Tek [Re: alaskappalachian]
    #27336889 - 06/05/21 11:55 PM (2 years, 9 months ago)

Very cool, thanks for sharing.  Never even heard of corn cob pellets, but I think I'm sold already.  How's the consistency of the rehydrated pellets?  I find straw pellets to be a little tricky to get right.

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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: elpico]
    #27336894 - 06/06/21 12:05 AM (2 years, 9 months ago)

You're welcome. I have used straw pellets in the past but the brand I was using discontinued and I was unable to find anything else like it until I came across these. It does clump a little when using it by itself but it shouldn't hurt anything. The clumps are fluffy and break up real easily. Other than that, I have found no other negatives, if that even is one.

Edit: I'm not sure if I even answered your question. :lol: I have been through a half dozen or more bags now and the pellet to water ratio is very consistent.

Edited by BrownBear (06/06/21 12:17 AM)

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OnlineDERRAYLD
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27336904 - 06/06/21 12:20 AM (2 years, 9 months ago)

Interesting,  following closely 🤔

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OfflineCrackatoa
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Re: BrownBear's Corncob Tek [Re: DERRAYLD]
    #27336958 - 06/06/21 01:19 AM (2 years, 9 months ago)

I just happened to order 40# of corncob rabbit bedding tonight. I'm assuming it's the same. I couldn't find the brand you're using at tractor supply near me. Should be here in a few days.


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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27336969 - 06/06/21 01:35 AM (2 years, 9 months ago)

Let me know how that works out for you. It might take some experimenting to get the water content correct. It took me a little adjusting over a few runs to get it on point.

This pic was taken yesterday at day 4 after inoculation. I used 5 qts of hydrated corncob and 1.5 qts ESS wheat spawn. I made 12 of these bags.


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InvisiblefahtsterM
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27337036 - 06/06/21 04:13 AM (2 years, 9 months ago)

:camping:

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OfflineSockadin
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Re: BrownBear's Corncob Tek [Re: fahtster]
    #27337068 - 06/06/21 05:38 AM (2 years, 9 months ago)

Yes. I love it when people find new stuff that can expand operations.

So just boiling water and no PC run? I do that with my coir anyway. Can't wait to see the results. 

Cause 40lbs for 9.99 is way cheeper than coir.

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Offlineroarkell
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Re: BrownBear's Corncob Tek [Re: Sockadin]
    #27337075 - 06/06/21 05:52 AM (2 years, 9 months ago)

I drive right by a tractor supply on my way to work but ive never been in it... maybe ill pop in and see if they carry anything like this...

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Re: BrownBear's Corncob Tek [Re: roarkell]
    #27337112 - 06/06/21 06:45 AM (2 years, 9 months ago)

In for the results. Coir got harder to find locally and expensive over the past year, this looks interesting.

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InvisibleSamushlove
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Re: BrownBear's Corncob Tek [Re: nonamekevin]
    #27337170 - 06/06/21 07:56 AM (2 years, 9 months ago)

Awesome!! Will be watching:mushroom2::stoned:

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Re: BrownBear's Corncob Tek [Re: roarkell]
    #27337233 - 06/06/21 09:01 AM (2 years, 9 months ago)

Roar they carry it at certain locations. Look for Premium Horse Bedding Corn Cob just like the one in the OP. Best Cob is the brand.

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OfflinePitcherCrab
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Re: BrownBear's Corncob Tek [Re: Sockadin]
    #27337242 - 06/06/21 09:07 AM (2 years, 9 months ago)

Dope Brown Bear! I'm stoked about this. Nice to see some other easy to source substrates coming out of the woodwork.


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InvisibleE_Dubbya
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Re: BrownBear's Corncob Tek [Re: PitcherCrab]
    #27337248 - 06/06/21 09:13 AM (2 years, 9 months ago)

Just grabbed a 40lb bag from Tractor Supply today, $9. I'll give it a shot.


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InvisibleSmartattack
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Re: BrownBear's Corncob Tek [Re: E_Dubbya]
    #27337269 - 06/06/21 09:29 AM (2 years, 9 months ago)

Huh, cool beans man! I wonder how much more nutritional it is vs coir? Not that it is needed but must be more so. I def like having an alternative so I'm gunna check my feed store and give this a shot.


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Re: BrownBear's Corncob Tek [Re: Smartattack]
    #27337308 - 06/06/21 10:16 AM (2 years, 9 months ago)

:camping:

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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: Smartattack]
    #27337310 - 06/06/21 10:17 AM (2 years, 9 months ago)

Thank you, everyone.

It is most likely more nutritious than coir since it needs a heat treatment but, from what I've read, it mostly contains lignin and cellulose.

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InvisiblePsicomb
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27337422 - 06/06/21 11:41 AM (2 years, 9 months ago)

Very cool and interesting tek, Bear! Thanks for the write up :sun:


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InvisibleDrboomer
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Re: BrownBear's Corncob Tek [Re: Psicomb] * 1
    #27337548 - 06/06/21 01:17 PM (2 years, 9 months ago)

Watching intently, I wonder how oysters would do on this.

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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: Drboomer]
    #27337561 - 06/06/21 01:21 PM (2 years, 9 months ago)

I bet oysters would do well. I could make a couple bags next weekend when I make my sawdust bags.

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OfflinedoubleD
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27338581 - 06/07/21 08:04 AM (2 years, 9 months ago)

watching. love your ideas BB
i believe ive walked by these bags many times in my local tractor supply before reaching the feed isle. gonna grab one thanks


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Re: BrownBear's Corncob Tek [Re: doubleD]
    #27338811 - 06/07/21 11:52 AM (2 years, 9 months ago)

Right on, BB!

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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: Feasoghorm]
    #27340387 - 06/08/21 03:11 PM (2 years, 9 months ago)

Here is a quick update on one of the tubs. I will take pics of both as they progress further. Perhaps when they are fully colonized which should be in about another 5 days.


Edited by BrownBear (06/08/21 05:07 PM)

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Invisibleelpico
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Re: BrownBear's Corncob Tek [Re: BrownBear] * 1
    #27340853 - 06/08/21 10:15 PM (2 years, 9 months ago)

I grabbed a forty pound sack of these pellets yesterday on the way home from work.  One thing I see immediately is that the hydrated pellets have a great fluffy texture, unlike the messy muck of straw pellets.  I'm pumped to try thee out with some exotic species I'm working with.  I think they're gonna love 'em.  Thanks again for the tip and look forward to seeing how your tubs turn out!

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Invisiblestubb
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Re: BrownBear's Corncob Tek [Re: elpico]
    #27340881 - 06/08/21 10:44 PM (2 years, 9 months ago)

:popcorn:


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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: elpico]
    #27340889 - 06/08/21 10:55 PM (2 years, 9 months ago)

You're right, they do have a fluffy texture. Keep me updated on the progress of your exotics. I'm interested as well.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27340916 - 06/08/21 11:20 PM (2 years, 9 months ago)

:popcorn:


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OfflineCrackatoa
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Re: BrownBear's Corncob Tek [Re: JHOVA] * 1
    #27340932 - 06/08/21 11:44 PM (2 years, 9 months ago)

Making 16qt tubs right now. Peu, RW, ESS. I've ran most with just a coir top layer, with RW I'm going to run one all cob,b one cob with coir top layer and one cob/coir mix with a straight coir top layer.


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OfflineRegis
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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27340955 - 06/09/21 12:04 AM (2 years, 9 months ago)

:threadmonitor:

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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27340999 - 06/09/21 01:08 AM (2 years, 9 months ago)

Quote:

Crackatoa said:
Making 16qt tubs right now. Peu, RW, ESS. I've ran most with just a coir top layer, with RW I'm going to run one all cob,b one cob with coir top layer and one cob/coir mix with a straight coir top layer.




Awesome. Thanks for giving it a try. My go to is 60% corncob and 40% coir with roughly 5 cups of straight coir for a top layer for my 15 qt tubs. I am definitely looking forward to seeing your results.

Edited by BrownBear (06/09/21 01:09 AM)

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OnlineDERRAYLD
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27341030 - 06/09/21 02:15 AM (2 years, 9 months ago)

I'm picking some up later to spawn to as well, will send updates.

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Re: BrownBear's Corncob Tek [Re: DERRAYLD]
    #27341243 - 06/09/21 07:50 AM (2 years, 9 months ago)

Subbing, pun intended


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Invisibleseldom seen
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Re: BrownBear's Corncob Tek [Re: filthyknees]
    #27341281 - 06/09/21 08:34 AM (2 years, 9 months ago)

:takingnotes:


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OfflineMr. Mushie

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27341885 - 06/09/21 04:28 PM (2 years, 9 months ago)

:strokebeard:

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InvisibleReverendMyc

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Re: BrownBear's Corncob Tek [Re: Mr. Mushie]
    #27341970 - 06/09/21 05:30 PM (2 years, 9 months ago)


I would love to see this succeed. Even just cutting with coir is a win.


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Offlinehazyhorse
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Re: BrownBear's Corncob Tek [Re: ReverendMyc]
    #27341990 - 06/09/21 05:46 PM (2 years, 9 months ago)

definitely wanna see how this turns out! good looks bear. you're always posting great shit


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OfflineBrownBear
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Re: BrownBear's Corncob Tek [Re: hazyhorse]
    #27342017 - 06/09/21 06:03 PM (2 years, 9 months ago)

ReverendMyc, The only thing left to prove is that it is capable of producing great flushes on its own. I have had great success with 60% corncob/40% coir with a top layer of coir. When I had gotten everything dialed in, I was maxing out at 2.15 dry oz per 1 qt of spawn.

My 15 qt tubs consisted of 2.5 qts of spawn, 6 qts of corncob/coir and 1.25 qts of coir for top layer. My 1st flush on each tub were weighing between 135-150 grams dry.

These results weren't just from one culture either. I had the same results with a WhyteGold clone, RustyWhyte ms and TOC ms.

Thank you, hazyhorse. I appreciate it.

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Offlinehazyhorse
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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342023 - 06/09/21 06:11 PM (2 years, 9 months ago)

anytime!! (:

holy shit, yields like that are really impressive. have you compared the yield of clone cultures side by side with tubs using only coir? i would be curious to see how to yields were between the two subs. 2.15oz per quart of grains is kinda insane & it would be cool to know if the corn cob was making that much of a difference


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Re: BrownBear's Corncob Tek [Re: hazyhorse]
    #27342030 - 06/09/21 06:21 PM (2 years, 9 months ago)

I wouldn't dare claim that it is solely the corncob but than again, I haven't ran any experiment between 100% coir vs 100% corncob. Someone else, a while back, asked me to run a side by side with a reliable clone. I haven't gotten around to it but after these two monotubs I have going are finished, I will go a head and get started on it. I will setup a thread in mush cult with a grow log.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342032 - 06/09/21 06:23 PM (2 years, 9 months ago)

i'd love to see it! obviously take your time with it, but i am super interested to see the results. i'm just too lazy to go out myself & get corncobs myself lol


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Re: BrownBear's Corncob Tek [Re: hazyhorse]
    #27342082 - 06/09/21 06:53 PM (2 years, 9 months ago)

Can't wait, BB. I can give you my educated guess after these RW boxes I spawned. It's not a clone, they're from the same master :shrug: It'll at least give me a rough idea. My Mono's I am going to be running 50/50 of cob and coir. Is there a reason you run 60/40?


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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27342104 - 06/09/21 07:11 PM (2 years, 9 months ago)

Quote:

Crackatoa said:
Can't wait, BB. I can give you my educated guess after these RW boxes I spawned. It's not a clone, they're from the same master :shrug: It'll at least give me a rough idea. My Mono's I am going to be running 50/50 of cob and coir. Is there a reason you run 60/40?




Yes. After some experimenting to find the proper water to corncob ratio, I found that 1 qt of dry pellets with 1.5 qts of water makes 5 qts of substrate. I knew that I wanted to use 6 qts of substrate per 15 qt tub. I know that 4 qts of water and a small brick of coir make 8 qts of substrate. So for me it was simple to use 2 qts of pellets, 1 brick of coir and 7 qts of water to make 18 qts of substrate in a 24 qt stock pot.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342108 - 06/09/21 07:16 PM (2 years, 9 months ago)

This may have been asked, could it just be added to bucket tek?


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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27342113 - 06/09/21 07:22 PM (2 years, 9 months ago)

My first attempt at using the corncob pellets, I hydrated the pellets with warm tap water and put them in a container and left it for a week. I did not add any spawn to it. The substrate ended up with cobweb mold. Since than I have just added the coir and corncob to boiling water and left to cool before spawning. You could give bucket tek a try with it and see how it does.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342116 - 06/09/21 07:25 PM (2 years, 9 months ago)

I think I will. I feel like it will work. I use boiling water to hydrate my coir. The only difference I feel is that my pot would hold heat longer than my bucket.


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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27342123 - 06/09/21 07:29 PM (2 years, 9 months ago)

My stock pot does hold heat well. It takes around 6 hours for the sub to be cool enough to handle.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342134 - 06/09/21 07:43 PM (2 years, 9 months ago)

I made mine in one of my prestos. Came out good though, I had to throw a little verm in some boxes but that made the texture even better, imo.


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Re: BrownBear's Corncob Tek [Re: Crackatoa]
    #27342142 - 06/09/21 07:57 PM (2 years, 9 months ago)

Following, I got a farm supply down the street I get my millet from. Be nice to get a sub from them.

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Re: BrownBear's Corncob Tek [Re: D3_Myc]
    #27342150 - 06/09/21 08:09 PM (2 years, 9 months ago)

Quote:

Crackatoa said:
I made mine in one of my prestos. Came out good though, I had to throw a little verm in some boxes but that made the texture even better, imo.




You're using a different brand and it's rabbit litter, right? If so, I'm sure you'll have to adjust the water a bit or like you said, add a little verm.

Quote:

D3monic said:
Following, I got a farm supply down the street I get my millet from. Be nice to get a sub from them.




Glad to see you here, D3. Those RWxMM RGS master jars should be ready in a few days. I cannot wait to get them going.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342166 - 06/09/21 08:22 PM (2 years, 9 months ago)

Awesome! Hope you get something good, I’ve got a few f1 clones that are going to stay in rotation but I personally haven’t gotten anything exciting in f2. Josex and aka got some cool phenos though.

Just looked at my local place, they don’t have the corn cob bedding. I’ll check farm n fleet

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Re: BrownBear's Corncob Tek [Re: D3_Myc]
    #27342235 - 06/09/21 09:38 PM (2 years, 9 months ago)

New grower here.  Thinking about giving this a go.  I have 6 quarts of Azurescens colonized and 5 quarts of Albinos almost colonized.  Will keep you posted.


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Re: BrownBear's Corncob Tek [Re: schmutzen]
    #27342265 - 06/09/21 10:24 PM (2 years, 9 months ago)

I am not all that well versed on other species besides cubensis and oyster mushrooms. But aren't Azurescens woodlovers? Anyway, please do keep me updated.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27342333 - 06/09/21 11:42 PM (2 years, 9 months ago)

They are woodlovers but my understanding is that they primarily eat cellulose and lignin.  I would much rather pasteurize corn cob pellets than woodchips.


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Re: BrownBear's Corncob Tek [Re: schmutzen] * 1
    #27342340 - 06/09/21 11:46 PM (2 years, 9 months ago)

I say go for it. I'm interested in the results. We all will learn something from it, regardless of the outcome.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27343869 - 06/11/21 02:03 AM (2 years, 9 months ago)

Both tubs are completely colonized on the bottom and around the sides. All that is left are some patches on the top layer.


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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27343935 - 06/11/21 04:04 AM (2 years, 9 months ago)

Tubs are looking sweet Brownbear.

I'm going to try this but do a regular bucket tek with warm water for the coir and heat treat the corncob. I see no reason why that wouldn't work.

I'm trying to calculate the recipe for a standard bucket tek with this method (650g coir, 2 qt verm, ~4qts water)

Do you think simply replacing the verm would be an easy way to go about it?

It sounds like the corncob pellets expand quite a bit so i'd imagine it would be less corncob and less coir to get that nice 60/40 ratio while also making 8-10 qts. I say 8-10 because I believe its around 10 on the dot when you add verm to bucket tek vs coir only, but I could be wrong.

I don't ever measure my substrate after it's mixed.

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Re: BrownBear's Corncob Tek [Re: Mr. Mushie]
    #27344319 - 06/11/21 11:30 AM (2 years, 9 months ago)

If you are just looking to replace the verm with corncob than you would need significantly less corncob pellets than you would verm. With a coir/verm substrate, you're typically adding the verm dry. That won't work with the corncob pellets obviously, unless you found away to grind the pellets. So you would have to either add the pellets to the coir before hydrating it or hydrate the corncob pellets separately.

If my math is correct you would need 1.6 cups of pellets and 2.4 cups of water to make 2 qts of corncob substrate at the correct water content. If using a different brand of corncob pellets, you may have to adjust the corncob to water ratio.

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Re: BrownBear's Corncob Tek [Re: BrownBear] * 1
    #27344332 - 06/11/21 11:41 AM (2 years, 9 months ago)

Just made up a bucket today. Amazing how compressed those pellets are. Fluffs up nicely.


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Re: BrownBear's Corncob Tek [Re: E_Dubbya]
    #27345848 - 06/12/21 05:54 PM (2 years, 9 months ago)

I have an update. An unfortunate update but an update none the less. I have a few uncolonized patches of corncob starting to go green in both tubs. I am 99.99% sure it wasn't my spawn. I have made 18 bags of sterilized corncob inoculated with the same batch of grain spawn. The 12x 3 qt bags of grain spawn that I used in total all came from the same master jar. None of the sterilized corncob bags have shown signs of contamination. Also no signs of bacteria and no signs of mold in any of the spawn bags. Recovery and colonization in the tubs was great on every side except the top layer of corncob.



Anyone that has started a project with corncob, please keep us updated. Anyone who hasn't started a project, proceed with caution.

I am going to try this again but add a top layer of coir next time and see how things go from there.

Thank you all for following. I hope you still come back for any future updates.

Edited by BrownBear (06/12/21 06:07 PM)

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27345864 - 06/12/21 06:10 PM (2 years, 9 months ago)

I started a 5lb bag yesterday.  2.5c HWFP, 2.5c CCHP (corn cob horse pellets), 2c wet mulch, 1.25c wheat bran, 1.4L water.  Sterilized at 15psi for 2 1/2 hours.  Added 1 quart of Azurescens spawn.  Also did a five gallon bucket.  2 quarts CCHP to 3 quarts water pasturized and mixed with mulch to fill bucket, 1 quart Azurescens.  The bucket is outside so I'm not worried about contamination as it's going in the ground.  The bag is already showing nice signs of growth.  Not sure who will finish first, my guess would be the bag.  Also started a shoebox with only mulch and spawn.  Still have a couple quarts of spawn was thinking about doing one bag HWFP vs. one bag CCHP.


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Re: BrownBear's Corncob Tek [Re: schmutzen] * 1
    #27346259 - 06/13/21 12:43 AM (2 years, 9 months ago)

That sucks BB but I suppose it’s not so surprising if the sub is nutritious. Especially opening the tub for pics, unlike coir any spores that fall in will have a nutrient source with spawn having not fully colonized it yet.


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Re: BrownBear's Corncob Tek [Re: D3_Myc]
    #27346268 - 06/13/21 01:04 AM (2 years, 9 months ago)

You made a good point there. It did look just fine until I opened it up a couple days ago to take pics. I did wipe my phone off with iso before hand but perhaps it wasn't good enough.

Anyway, I'm not giving up. I will keep going with this until I learn all that is possible with the corncob. I have had more success so far than I have had failure with it. If nothing else, it does work well mixed with coir. Next attempt will be  100% corncob with a 100% coir top layer.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27346355 - 06/13/21 03:55 AM (2 years, 9 months ago)

Bummer about the contaminated tubs! I'm stoked to see what everyone else comes up with, I am going to try and see if I can find corncob pellets next time I'm at the feed store

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27346385 - 06/13/21 05:15 AM (2 years, 9 months ago)

Quote:

Iambrownbear said:
You made a good point there. It did look just fine until I opened it up a couple days ago to take pics. I did wipe my phone off with iso before hand but perhaps it wasn't good enough.

Anyway, I'm not giving up. I will keep going with this until I learn all that is possible with the corncob. I have had more success so far than I have had failure with it. If nothing else, it does work well mixed with coir. Next attempt will be  100% corncob with a 100% coir top layer.




So can you leach the corncob when you make your sub? Then PC it and finally top layer coir on it? I am not sure of the consistency of it but basically over hydrate it and let the water run through it in Smart's Bucket tek and then let it dry back out a bit before PCing.

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Re: BrownBear's Corncob Tek [Re: Sockadin]
    #27346486 - 06/13/21 07:52 AM (2 years, 9 months ago)

Maybe your results are similar to when people dont pasteurize their peat casing and still get a flush? I mean it works sometimes but not 100%?


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Re: BrownBear's Corncob Tek [Re: JHOVA]
    #27346662 - 06/13/21 10:35 AM (2 years, 9 months ago)

The 60% corncob/ 40% coir with a top layer of coir was very consistent.

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Re: BrownBear's Corncob Tek [Re: BrownBear] * 1
    #27346773 - 06/13/21 12:37 PM (2 years, 9 months ago)

My go at it seems to have failed. My tub has a few spots of pinmold growing on the surface today. Also smells pretty 'sweet' or fermented in a way. Thinking it may have been the spawn, I opened my bucket with the substrate I had left over, and sure enough full of pin mold and the fermented smell was overpowering, almost made me pass out. May give it another go with a coir mix. I should add, I PCd my cob, so kinda weird it went south. I've left coir in my bucket unused for weeks with no issue.



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Edited by E_Dubbya (06/13/21 12:41 PM)

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Re: BrownBear's Corncob Tek [Re: E_Dubbya]
    #27346815 - 06/13/21 01:19 PM (2 years, 9 months ago)

:takingnotes:


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Re: BrownBear's Corncob Tek [Re: TonyMushrana]
    #27346906 - 06/13/21 02:59 PM (2 years, 9 months ago)

Maybe the corncob is more viable for bag grows since there is less potential exposure to mold spores in the air?


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Re: BrownBear's Corncob Tek [Re: PitcherCrab]
    #27346909 - 06/13/21 03:02 PM (2 years, 9 months ago)

I have some bags going right now. Some colonizing, some introduced to fruiting conditions. We'll see how those go.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27352620 - 06/17/21 05:45 PM (2 years, 9 months ago)

I had a thought about the corncob and how to deal with the higher level of nutrition in it. Could over hydrating the corncob and then leeching it work?

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27352630 - 06/17/21 05:56 PM (2 years, 9 months ago)

What is the consistency of it when it is super hydrated? Maybe soak it in Campden tablets and then let it dry out a bit before bucket teking it.

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Re: BrownBear's Corncob Tek [Re: Sockadin]
    #27352632 - 06/17/21 05:57 PM (2 years, 9 months ago)

Idk. I have never super hydrated it.

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Re: BrownBear's Corncob Tek [Re: BrownBear] * 1
    #27367147 - 06/29/21 06:56 AM (2 years, 8 months ago)

So after 10 tubs of experimenting, all have developed some kind of pin/cobweb mold. Tried PC, pasteurize, various ratios of CC to coir, top layers, etc. I can't blame my spawn since all other grows from the same grains are going as normal.

To prove my suspicion of the CC being a nutrient source, I PCd a small jar of it yesterday morning and added some PE6 LC I have laying around. Sure enough, 24 hours later and the mycelium is looking like it loves it.



So, in my opinion, not a good choice for substrate unfortunately. I will let this spawn jars go to see what happens. I suppose if it could be used as a spawn it could be interesting, since you would just add water and PC so not much prep. Although the way the stuff settles it would be more like a brf cake I suppose.


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Edited by E_Dubbya (06/29/21 07:05 AM)

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Re: BrownBear's Corncob Tek [Re: E_Dubbya]
    #27367156 - 06/29/21 07:05 AM (2 years, 8 months ago)

Thanks for taking the time and donating the material to experimenting with this potential substrate.

I swear every canopy I have posted on shroomery has been of my 60/40 corncob/coir mix. I never had a problem with contamination until I tried to use it as a stand alone in a monotub.

I am not doubting your results. I just think that its crazy how I was able to get away with using it in an unsterile environment for so long. Now I am pondering the very idea of what part or parts of my process allowed me to have such great success with it.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27367163 - 06/29/21 07:11 AM (2 years, 8 months ago)

I think if you have a nice, fast, aggressive culture that takes over the substrate quickly, you may be in ok shape. My one tub of PE6 spawn which is very aggressive 'almost' survived, was about 90% and one small spot that didn't colonize yet started showing mold the other day. My others were known slow colonizers, and succumbed before even showing mycelium on the top.

So maybe genetics plays a part here too. Also, my apartment is riddled with contam these days, so that doesn't help. So for me, I'll stick to 100% coir, it just works here👍


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Re: BrownBear's Corncob Tek [Re: E_Dubbya]
    #27367172 - 06/29/21 07:17 AM (2 years, 8 months ago)

My basement is very dusty and hard to keep clean so I doubt that is the issue. I was using popcorn/wbr as spawn which was inoculated with slurry. Perhaps my spawn was able to spread more evenly because of the rice and slurry and in turn colonized the substrate fast enough to avoid contamination. That and maybe the filtered FAE and positive pressure in my grow tent. They are the only variables that I can think of atm.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27391972 - 07/17/21 10:52 PM (2 years, 8 months ago)

Damn! I bought a bag of this hoping to replace coir but didn't do anything with it yet.

Brownbear, have you tried upping the ph with calcium carb or hydrated lime? I add 10% by dry weight to my coir out of paranoia, but maybe it would help a 100% corncob sub. Mold doesn't like to germinate in high ph.

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Re: BrownBear's Corncob Tek [Re: Moopers]
    #27391980 - 07/17/21 10:59 PM (2 years, 8 months ago)

No, I haven't. Lately I have been running corncob and coir/corncob bags. I have 3 bags of wheat spawn waiting for me when I get back home next weekend. I plan on giving the 100% corncob tubs one more try. The hydrated lime sounds like a good idea. Thanks.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27392486 - 07/18/21 01:02 PM (2 years, 8 months ago)

I spawned a little test tray of a P. caerulescens clone.  Close to equal parts WBS spawn, CV, corncob pellets.  The mycelium has torn through the sub pretty fast and we're close to 100% at day 3.  Lookin' good so far!

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Re: BrownBear's Corncob Tek [Re: elpico]
    #27393011 - 07/18/21 09:14 PM (2 years, 8 months ago)

Awesome write up, I use coco and hardwood and I noticed if I had some hydrated lime it really helps with the contam rate without having to properly heat pasteurize. Maybe you can try adding some and see if it'll help? Dope work!

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Re: BrownBear's Corncob Tek [Re: BlueMushies]
    #27393013 - 07/18/21 09:15 PM (2 years, 8 months ago)

Just realized someone already mentions it lol works for me every time, even with wood chips soaked in hot water and hydrated lime.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27393032 - 07/18/21 09:31 PM (2 years, 8 months ago)

I'm assuming the corncob contains some sort of mycelium nutrient that coir lacks?
Or is that all about *humidity
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Re: BrownBear's Corncob Tek [Re: tututotutut] * 1
    #27393057 - 07/18/21 10:05 PM (2 years, 8 months ago)

Corn cob is going to contain additional sugars and starch versus coir which is pretty much basically inert pure cellulose.

I think too layering coir enough to block out airborne contaminates may be the key.
I really want to run some bottle subs of just pure corncob but I'm having a hard time with culture work. My house is 200 years old and with summers humidity comes a shit ton of mold issues.

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Re: BrownBear's Corncob Tek [Re: Drboomer] * 1
    #27393090 - 07/18/21 10:38 PM (2 years, 8 months ago)

Quote:

BlueMushies said:
Awesome write up, I use coco and hardwood and I noticed if I had some hydrated lime it really helps with the contam rate without having to properly heat pasteurize. Maybe you can try adding some and see if it'll help? Dope work!





Thanks. I have a few bags of spawn ready. Definitely going to try the hydrated lime with the next set of monotubs.

Quote:

tututotutut said:
I'm assuming the corncob contains some sort of mycelium nutrient that coir lacks?
Or is that all about *humidity
That canopy is redonkulous!




Honestly, I think it is a combination of things that contribute to the those canopies with environmental conditions certainly being a major one.

Quote:

Drboomer said:
Corn cob is going to contain additional sugars and starch versus coir which is pretty much basically inert pure cellulose.

I think too layering coir enough to block out airborne contaminates may be the key.
I really want to run some bottle subs of just pure corncob but I'm having a hard time with culture work. My house is 200 years old and with summers humidity comes a shit ton of mold issues.




I will definitely be adding a decent top layer of coir at spawning when I run my next set of tubs.

My basement gets pretty humid during the summer months. I run a dehumifier and drain it straight into a 40 gallon trash can and pump that out when it gets full. I noticed a higher contam rate from leaving old dishes laying around for 4+ weeks these past couple of months. In the winter I was able to leave them at room temp for what seemed indefinite without contamination. But not now. I think the humidity has something to do with it. Buying a mini fridge is looking like a good investment so far.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27395804 - 07/20/21 09:34 PM (2 years, 8 months ago)

Oh I wanna see where this is going...


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Re: BrownBear's Corncob Tek [Re: kingboomer]
    #27395842 - 07/20/21 10:09 PM (2 years, 8 months ago)

Following...


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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27397651 - 07/22/21 07:55 AM (2 years, 8 months ago)

Ok so my math skills are shit right now so I just wanna confirm:  1qt dry expands to 5qt fully hydrated?  Thanks man


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Re: BrownBear's Corncob Tek [Re: kingboomer]
    #27397657 - 07/22/21 08:05 AM (2 years, 8 months ago)

Yes. 1 qt of pellets and 1.5 qts of water will make 5 qts of hydrated substrate.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27397709 - 07/22/21 09:03 AM (2 years, 8 months ago)

Anyone tried this with oysters yet? Been unable to locate soybean hulls and thinking about substituting these. Read a couple of studies with mixed results.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27402616 - 07/26/21 10:18 AM (2 years, 7 months ago)

Hey maybe I missed it, but how's the stand alone experiment going?


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Re: BrownBear's Corncob Tek [Re: kingboomer]
    #27411119 - 08/01/21 07:17 PM (2 years, 7 months ago)

Today I spawned 2 corncob tubs. Each tub received 1280 grams of dry corncob, 2775 grams of water and 128 grams of calcium hydroxide (as suggested by moopers and BlueMushies). I also used 1.5 qts of coir hydrated at field capacity for a top layer. I spawned these tubs with roughly 3 full qts of rgs spawn. Each spawn bag was made up of 800 grams of rgs and 400 grams of water.

With the amount of inoculation points that rgs supplies and with the added calcium hydroxide, I am hoping to have better results. I will keep you all updated as things progress.






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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27412188 - 08/02/21 05:43 PM (2 years, 7 months ago)

:popcorn:


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Re: BrownBear's Corncob Tek [Re: kingboomer]
    #27412218 - 08/02/21 06:07 PM (2 years, 7 months ago)

Quote:

kingboomer said:
Ok so my math skills are shit right now so I just wanna confirm:  1qt dry expands to 5qt fully hydrated?  Thanks man


-Kingboomer




Sorry, I missed your question. Yes. 1 qt of dry pellets and 1.5 qts of water makes 5 qts of hydrated substrate.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27412221 - 08/02/21 06:10 PM (2 years, 7 months ago)

I really want this to work consistently. Be so nice to work with some new materials.


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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27412470 - 08/02/21 09:55 PM (2 years, 7 months ago)

Quote:

Iambrownbear said:
Quote:

kingboomer said:
Ok so my math skills are shit right now so I just wanna confirm:  1qt dry expands to 5qt fully hydrated?  Thanks man


-Kingboomer




Sorry, I missed your question. Yes. 1 qt of dry pellets and 1.5 qts of water makes 5 qts of hydrated substrate.






Lol naw you got it man, thanks!


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Re: BrownBear's Corncob Tek [Re: kingboomer]
    #27418250 - 08/07/21 01:31 PM (2 years, 7 months ago)

Perhaps I should cut the calcium hydroxide back from 10% to 5% by dry weight? The recovery is super slow. It's been 6 days now and this is the progress so far.


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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27418612 - 08/07/21 05:08 PM (2 years, 7 months ago)

Following. Interesting


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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27418640 - 08/07/21 05:24 PM (2 years, 7 months ago)

Quote:

Iambrownbear said:
Perhaps I should cut the calcium hydroxide back from 10% to 5% by dry weight? The recovery is super slow. It's been 6 days now and this is the progress so far.






Did you test the ph?  I don’t think myc will grow in anything much higher than ~9, based on my own research.  Not sure how much a teaspoon of lime weighs but when I add it to my casing mix, I use a tsp per cup of peat.  The 100+ grams you used seemed really high when I read that

Faht

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Re: BrownBear's Corncob Tek [Re: fahtster]
    #27418657 - 08/07/21 05:42 PM (2 years, 7 months ago)

The water tested 11.5 before adding the pellets. I don't know what the ph was after adding the pellets. I thought the water read a little too high but I was just following someone elses suggestion blindly. :lol:

I will give it another try using less calcium hydroxide. If I had to guess, 1 teaspoon will weigh around 2-3 grams. Should I aim lower than what you do for a peat casing or start with that and see where it goes?

Or maybe I should aim for the water to be around 8 before adding the pellets?

Edited by BrownBear (08/07/21 05:46 PM)

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27418711 - 08/07/21 06:29 PM (2 years, 7 months ago)

8-8.5 seems to be where the myc likes their casing.  I’ve never added lime to substrate before.. kinda just going off the casing recipe but myc rips through that np and sits uncontaminated for multiple flushes. 

And I’ve always tested the casing material after the water was added.. I don’t know if the ph changes (or if it doesn’t) once added to the material.

I just know that 11 is too high

Faht

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Re: BrownBear's Corncob Tek [Re: fahtster]
    #27418754 - 08/07/21 07:21 PM (2 years, 7 months ago)

I will give 8-8.5 a try then. Thank you for the information you have provided, faht.

As always, I will keep everyone updated.

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27418817 - 08/07/21 08:24 PM (2 years, 7 months ago)

I had three trays of three different species(caerulescens, papuana, sect. zapotecorum Aus) that got hit with trich a week or two after casing.  They were looking great up to that point(suspect grain spawn may have been the culprit).  The caerulescens in particular just devoured the mixture of coir/verm/corn cob pellets.  One tray of papunana is still in the FC.  I suspect that the corn cob is closer to straw in terms of nutrition, and I think I'll run these again with a more traditional pasteurization(rather than bucket tek).  Either way, seems like a great substrate.  I'll keep at it.

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Re: BrownBear's Corncob Tek [Re: elpico]
    #27420579 - 08/09/21 05:23 AM (2 years, 7 months ago)

Just wanted to drop in and say that I spotted this thread a week or two ago.  I had been wanting to check out corn cobs for edibles after reading some papers on them.

My local(ish) Tractor Supply Co can order the bags.  So I'm going to grab a couple.  I probably won't mess around with unsterile teks with them but do intend to try them with Tamps as well as a few varieties of edibles.

Also wanted to bookmark this thread and contribute what I can when the time comes.


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Re: BrownBear's Corncob Tek [Re: paperbackwriter]
    #27463571 - 09/10/21 09:06 PM (2 years, 6 months ago)

I made 4x 15qt tubs and 4x 27qt tubs of popcorn spawn and corncob. All of them with a 1:2 ratio. I did not adjust the ph of the corncob. They are all about a week to 10 days old. They all look fully colonized with no sign of contamination. One sub has began to pull away from the sides. As long as things go well over the next 4-8 days, I should see these tubs start to knot up. Ess  usually begin to pin 14-18 days after spawning.


Edited by BrownBear (09/10/21 11:27 PM)

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27463598 - 09/10/21 09:47 PM (2 years, 6 months ago)

Hey that looks promising. :awesomenod:


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Re: BrownBear's Corncob Tek [Re: Smartattack]
    #27499911 - 10/10/21 06:25 PM (2 years, 5 months ago)

Bump


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Re: BrownBear's Corncob Tek [Re: kingboomer]
    #27499937 - 10/10/21 06:48 PM (2 years, 5 months ago)

:whathesaid:


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Re: BrownBear's Corncob Tek [Re: Smartattack]
    #27500002 - 10/10/21 07:29 PM (2 years, 5 months ago)

:camping:


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Re: BrownBear's Corncob Tek [Re: DnDRnD]
    #27667813 - 02/21/22 12:47 PM (2 years, 1 month ago)

I made some substrate bags and spawned cyans to them recently. 3 all sawdust, 1 50:50 sawdust:corncob pellets and 1 all corncorb pellets. Sawdust was prepped per Lipa tek (boiling water), with 10% CaCO3 per dry weight. 50:50 bag and all corncob bag were prepped by pouring in 180F water, also supplemented with 10% CaCO3. All were placed in a towel-lined tub for 24 hours to cool. Spawned 1 quart of cyan on millet to each; it's a clone culture so should be good anecdotal evidence.

Myc has recovered and started to colonize. I will post an update when things are farther along.

Edited by Moopers (02/22/22 08:43 PM)

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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27667850 - 02/21/22 01:32 PM (2 years, 1 month ago)

Quote:

BrownBear said:
I made 4x 15qt tubs and 4x 27qt tubs of popcorn spawn and corncob. All of them with a 1:2 ratio. I did not adjust the ph of the corncob. They are all about a week to 10 days old. They all look fully colonized with no sign of contamination. One sub has began to pull away from the sides. As long as things go well over the next 4-8 days, I should see these tubs start to knot up. Ess  usually begin to pin 14-18 days after spawning.






Hey man how did this turn out


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Re: BrownBear's Corncob Tek [Re: Moopers]
    #27689821 - 03/10/22 01:49 PM (2 years, 19 days ago)

Quote:

Moopers said:
I made some substrate bags and spawned cyans to them recently. 3 all sawdust, 1 50:50 sawdust:corncob pellets and 1 all corncorb pellets. Sawdust was prepped per Lipa tek (boiling water), with 10% CaCO3 per dry weight. 50:50 bag and all corncob bag were prepped by pouring in 180F water, also supplemented with 10% CaCO3. All were placed in a towel-lined tub for 24 hours to cool. Spawned 1 quart of cyan on millet to each; it's a clone culture so should be good anecdotal evidence.

Myc has recovered and started to colonize. I will post an update when things are farther along.




The 100% alder bags were faster. The 50/50 and 100% corncob pellet bags are about a week behind. But, part of that may be that I'd didn't fluff up the corncob enough after hydrating. Here's the all corncob bag. Just jazzed it worked at all, because I have a 40 pound bag of corncob pellets I need to do something with.


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Re: BrownBear's Corncob Tek [Re: Moopers]
    #27752557 - 04/26/22 06:36 PM (1 year, 10 months ago)

I wanted to post an update here to show a tub of Psilocybe natalensis I am growing using BrownBear's mix of coir and corncob, except with 10% CaCO3 added, and a 2cm top layer of all coir because nats seem to overlay less with it.

So far it's growing out clean and beautifully, with no major overlay so far. Fruits are forming. Like other tubs of nats I've grown, lots of side pins are forming, too.



If no contam appears, I'd call this a success and some anecdotal evidence that the corncob and coir mix can work.

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Re: BrownBear's Corncob Tek [Re: Tight Lunchbox]
    #27752669 - 04/26/22 08:43 PM (1 year, 10 months ago)

Quote:

Tight Lunchbox said:
Quote:

BrownBear said:
I made 4x 15qt tubs and 4x 27qt tubs of popcorn spawn and corncob. All of them with a 1:2 ratio. I did not adjust the ph of the corncob. They are all about a week to 10 days old. They all look fully colonized with no sign of contamination. One sub has began to pull away from the sides. As long as things go well over the next 4-8 days, I should see these tubs start to knot up. Ess  usually begin to pin 14-18 days after spawning.






Hey man how did this turn out




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Re: BrownBear's Corncob Tek [Re: BrownBear]
    #27752705 - 04/26/22 09:46 PM (1 year, 10 months ago)

Quote:

After some experimenting to find the proper water to corncob ratio, I found that 1 qt of dry pellets with 1.5 qts of water makes 5 qts of substrate. I knew that I wanted to use 6 qts of substrate per 15 qt tub. I know that 4 qts of water and a small brick of coir make 8 qts of substrate. So for me it was simple to use 2 qts of pellets, 1 brick of coir and 7 qts of water to make 18 qts of substrate in a 24 qt stock pot.



Quote:

My 15 qt tubs consisted of 2.5 qts of spawn, 6 qts of corncob/coir and 1.25 qts of coir for top layer.



Quote:

If my math is correct you would need 1.6 cups of pellets and 2.4 cups of water to make 2 qts of corncob substrate at the correct water content. If using a different brand of corncob pellets, you may have to adjust the corncob to water ratio.



Quote:

1 qt of pellets and 1.5 qts of water will make 5 qts of hydrated substrate.




First: thanks BrownBear for all the specifics regarding scaling! Will be very helpful with the below.

Second: has anyone attempted to incorporate the corncob as a nutritive substrate ingredient into a Muda or other PP5 bottle tek?  I realize the op was about 100% corncob sub for bulk tubs, after BB had success at 60/40 with coir. But it seems to me that this could be really well adapted for a bunch of small bottle grows for anyone pheno-hunting, narrowing down a bunch of ms cultures, or just anyone who doesn’t want to fuck with the straw or manure that a lot of bottle tek recipes call for. Sterilizing inside the ziploc’s could possibly help with the contam problems others experienced after spawning to bulk. Tractor Supply down the way from me carries 40# bags for $12.  :strokebeard2:  I’m thinking of giving it a whack. Any tips?


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Edited by Egon_Spengler (04/26/22 10:00 PM)

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Re: BrownBear's Corncob Tek [Re: Egon_Spengler]
    #27753183 - 04/27/22 10:17 AM (1 year, 10 months ago)

:takingnotes:

No tips from me, but I would be very interested to see how gourmets and exotics do on corn cob muda bottles. I have been experimenting with Muda Ziploc Twist-n-Loc bottles, but have been avoiding playing with poop so far.


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Re: BrownBear's Corncob Tek [Re: ReverendMyc]
    #27753228 - 04/27/22 10:51 AM (1 year, 10 months ago)

Egon, this may be helpful info as you proceed:

Quote:

Nillion said:
Corn Cob is hemicellulose rich meaning it is very nutritious, but not all of that is available.

My notes put averages for Cob at:
10% lignin
44% hemicellulose
38% cellulose
0.3%fat
0.67% starch
4.2% protein
and 2.5% ash.




And

Quote:

Nillion said:
I have some other corncob data from another notebook.

It has slightly different values, so I expect a range and that seasonal variations may also occur.

35.5% fiber
2.5 % protein
0.12% Ca
0.04% phosphorus

The fiber is:
30-40% cellulose
20-36% hemicellulose
16% lignin
8% other (perhaps ash? other is vague)

It is good to know that pelletized materials have altered ratios and chemical changes and may not perform the same as the same material without being extruded.

I've seen a few varieties of cube grow on supplemented corncob and I've seen it used for cloning and superspawning as well, but honestly cubensis are not challenging to grow on most any supplemented lignocellulosic material. It will grow on pine pellets too so my observing that corn works for cubes doesn't mean it is a viable substrate for growing good amounts of choice mushrooms like Kings. I suspect it is however and that getting the ratios is the trick.



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Re: BrownBear's Corncob Tek [Re: Moopers] * 1
    #27753588 - 04/27/22 04:17 PM (1 year, 10 months ago)

INCOMING: long post

Quote:

ReverendMyc said:

I have been experimenting with Muda Ziploc Twist-n-Loc bottles, but have been avoiding playing with poop so far.




Yeah, I’m with you there, Rev. It’s great to toss some Black Kow down with spent substrates for no-effort outdoor grows. But the only time I tried to supplement a shoebox with it indoors in a side-by-side run using the same clean spawn, the plain CV flushed better and the shoebox with BK gave a small number of denser fruits then quickly contaminated even though the BK had been sterilized before mixing into the pasteurized CV. Overall, a lower yield, so after that, I don’t mess with manure indoors any more.  But the pelletized cob looks like it easily hydrates up nice and fluffy like coir.  So I’m thinking that under the controlled (sterilized) conditions of a bottle grow, the potential benefits of added nutrition seems like it could play an interesting role.

Quote:

Moopers said:
Egon, this may be helpful info as you proceed:

Quote:

Nillion said:
…I've seen a few varieties of cube grow on supplemented corncob and I've seen it used for cloning and superspawning as well.

…I suspect… that getting the ratios is the trick.







I appreciate the input Moop. Gonna save this and look through some of Nillion’s posts. I was wondering about the added ingredient percentages in the pellets. Not many online listing have that much detail. Found a brand of rabbit bedding which says it’s additive free, but it’s like 8x more expensive.

Anyway, I’ve got a clone culture of a nice fat wild foraged cube that fruits very sparsely on WBS+CV alone, but was harvested in decent clusters in the wild. I suspect that to some degree the organism was accustomed to a certain biome that just isn’t replicated indoors, but i’m curious as to whether corn cob may help supplement the WBS enough to make up for it a bit.

More likely, the case may be that the the clone tissue taken from the donor fruit was of too limited a section of strains inside the stipe, and I just didn’t get enough to help it spread the fruit out. This was probably compounded by the isolation of sectors during the first couple of transfers that were necessitated by how bacterial the wild clone agar plates were. The culture I have left may simply be too narrow to get the canopy I hope for, even if the individual fruits are attractive.

The good news is: when collecting the foraged specimens, I took lots of prints. So where I’m really going with this whole corn cob/CV-in-a-bottle line of thought, is that I’m now preparing to shake down a bunch of ms cultures on agar and would love to be able to work a bunch of lines at once. Though I don’t have any previous experience with them (only shoeboxes, mono’s, outdoor grows), Muda’s twist-n-lock bottles seem like a fit to let me try out lots of cultures quickly without committing tons of material and space to each one. As I mentioned above to RevMyc, I don’t want to get back into manure and I hear straw can be a pain in the ass. But I would love to amp up the subs, in the event that the ms cultures (like the clone) also underperform on just grain and CV. I know there’s bran and flour and dog food and all the other options, but something about these pellets interests me. Seems easy to use, relatively cheap.

So I think the info in this thread and y’alls input has me talking myself into a two-phase project. First, try a single familiar culture across a set of bottles where the only variable for the run is the ratio of CV to corn cob in each of the subs, to determine if BrownBear’s 60/40 sticks the landing in such a small application, or if the levels could use some tweaking. THEN having established a baseline, use the test run ratio findings to work a bunch of ms cultures and go hunting/stabilizing with the wild genetics.

A little ambitious, gonna take some planning. Once I sort the details and get running, I’ll take some notes and report back on how it goes.

Thanks for the inspo, guys!


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OfflineMoopers
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Re: BrownBear's Corncob Tek [Re: Egon_Spengler]
    #27753609 - 04/27/22 04:26 PM (1 year, 10 months ago)

That sounds like a reasonable approach. Post some updates here or share a journal link if you go that route. I'll want to read along

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InvisibleEgon_Spengler
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Re: BrownBear's Corncob Tek [Re: Moopers]
    #27753663 - 04/27/22 05:00 PM (1 year, 10 months ago)

:fedora:


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