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Offlinechefinainteasy
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Re: Pasteurizing Sawdust with Lime [Re: OICU812]
    #19503248 - 01/31/14 08:22 PM (10 years, 24 days ago)

Same ones I just boight


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InvisibleMushmitch
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Re: Pasteurizing Sawdust with Lime [Re: chefinainteasy]
    #19504060 - 01/31/14 11:29 PM (10 years, 24 days ago)

so I just wanted to add with plain sawdust(not pellets) I just add lime water till at field capacity and inoculate.. no wait no heat :laugh:


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OfflineAmanita virosa
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Re: Pasteurizing Sawdust with Lime [Re: Mushmitch]
    #19504942 - 02/01/14 07:10 AM (10 years, 23 days ago)

Won't work as well with sawdust. The reason pellets work is that the extrusion process generates a lot of heat. So the pellets are semi sterile. Sawdust is FULL of microbes. I guess it depends on the quality of ur sawdust though. If it is kiln dried and straight out if the wood workers mill it might still work. But pellets and sawdust are two different animals in terms of contamination IMO.


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InvisibleAleon
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Re: Pasteurizing Sawdust with Lime [Re: Amanita virosa]
    #19504964 - 02/01/14 07:21 AM (10 years, 23 days ago)

Brown Oyster 3T bag made on 1/3 started fruiting inside the bag on 1/29.  I put it into the FC. The 4' column has not pinned yet; but it is in the FC.


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Offlinechefinainteasy
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Re: Pasteurizing Sawdust with Lime [Re: Aleon]
    #19506549 - 02/01/14 03:04 PM (10 years, 23 days ago)

Just made some bags today and yesterday with a mix of lime past. rice hulls, soaked for 18hrs, and saw dust done in this fashion. Supplemented with cotton seed hulls. Looking to speed up colonization by adding some materials to aerate the substrate, without having to use/chop straw. I don't have the recipes on me but ill post more later.


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Check out my youtube videos. the Mushrooms Naturally series by chefinainteasy

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OfflineAmanita virosa
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Re: Pasteurizing Sawdust with Lime [Re: chefinainteasy]
    #19506968 - 02/01/14 04:24 PM (10 years, 23 days ago)

Aleon and chefn. Thanks for experimenting!  Please keep us posted. I for one am curious to see what happens here. Chef I am curious about how much lime ur adding


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Offlinechefinainteasy
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Re: Pasteurizing Sawdust with Lime [Re: Amanita virosa]
    #19507196 - 02/01/14 05:09 PM (10 years, 23 days ago)

Right now, as per the chart I found and posted earlier in the thread, im using 1.8g lime to 1L(1000g) water. I have taken temperatures of water and added differing amounts until precipitation and the chart is pretty accurate. I should be getting my test strips in the mail Monday. My ph meter is still reading high, though calibrates accurately when the ph is near or at 7 in calibrating solution and distilled water.  :shrug:


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Check out my youtube videos. the Mushrooms Naturally series by chefinainteasy

My new business is now on facebook at https://www.facebook.com/MushroomsNaturally?ref=hl

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InvisibleMushmitch
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Re: Pasteurizing Sawdust with Lime [Re: chefinainteasy]
    #19507605 - 02/01/14 06:55 PM (10 years, 23 days ago)

My sawdust is from cabinet shop, but its been sitting for a few months and I only add lime water to the dust and inoculate. it works for me with pearl oyster..


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OfflineAmanita virosa
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Re: Pasteurizing Sawdust with Lime [Re: Mushmitch]
    #19508016 - 02/01/14 08:31 PM (10 years, 23 days ago)

Quote:

Mushmitch said:
My sawdust is from cabinet shop, but its been sitting for a few months and I only add lime water to the dust and inoculate. it works for me with pearl oyster..



Oh,  my bad. I reread your post. I thought you were asking if that would work with plain sawdust.
I was thinking you were op.  that's awesome it is working for u.


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Offlinechefinainteasy
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Re: Pasteurizing Sawdust with Lime [Re: Amanita virosa]
    #19517888 - 02/03/14 08:48 PM (10 years, 21 days ago)

So here is the latest batch of experiments. I bought some par boiled rice hulls from the greenhouse supply place. It was 50# for $15. I am still looking for a source of soy hulls, but cant find a place that I don't have to buy a ton. Not a problem when I have my space, but no where to put them now. Any way, my aim is to aerate the wood substrate in hopes to speed up colonization, and still get yields I need, plus only using lime to process the substrate. I did a few different things.

On 1/31

I mixed two bags, one with soaked rice hulls and one with dry hulls. I used about 20% hulls to 80% oak pellets. I wasn't sure if just mixing dry hulls in with the dry pellets and adding the lime water would be enough to hydrate the hulls, as they don't hold much water. Though I think it worked just fine.
Here is the bag with dry hulls added in.


Here is the bag with soaked hulls(just in water not lime soaked):


Both of these bags were supplemented with 20% cotton seed meal and about 8% spawn. The recipes are on the bag if you can read them, if not ill edit them in.

So after I got done mixing these bags I thought it might be a better idea to soak the rice hulls in lime water for 18 hours like you would with chopped straw. So I did that and mixed some more bags. This time though I did a 50-50 mix of rice and oak pellet by dry weight, 20% supplement by dry weight, and lime water. The advantage of adding sawdust to a hull is you don't have to press the hulls or even really drain them that much. Just adjust the additional water added to the dry pellets to leave them dry enough to soak in the excess water from the hulls. Seemed to work well. I just filled some 1mil poly bags I had at work.


You can see from the pics that the 80-20 bags made 1/31 are almost fully colonized already. So im seeing the advantage of the extra expense of the hulls, as long as the yield is there.

Here is the just for fun millet spawn bags I put together. Surprisingly not contaminated and nearly fully colonized. I posted about these in the other thread on this subject, just don't feel like doing another post right now.


Someone else please try this. It seemed to work. I cant imagine it having consistent results though. But who knows? :shrug:


--------------------
Check out my youtube videos. the Mushrooms Naturally series by chefinainteasy

My new business is now on facebook at https://www.facebook.com/MushroomsNaturally?ref=hl

                                                                                                                            MY Garden:grin:


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Offlineghiajake
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Re: Pasteurizing Sawdust with Lime [Re: chefinainteasy]
    #19517932 - 02/03/14 08:55 PM (10 years, 21 days ago)

Are the millet bags only lime pasteurized?


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Offlinechefinainteasy
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Re: Pasteurizing Sawdust with Lime [Re: ghiajake]
    #19517944 - 02/03/14 08:57 PM (10 years, 21 days ago)



--------------------
Check out my youtube videos. the Mushrooms Naturally series by chefinainteasy

My new business is now on facebook at https://www.facebook.com/MushroomsNaturally?ref=hl

                                                                                                                            MY Garden:grin:


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Offlineghiajake
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Re: Pasteurizing Sawdust with Lime [Re: chefinainteasy]
    #19518014 - 02/03/14 09:10 PM (10 years, 21 days ago)

That's awesome man! I have an extra Enoki jar just chilling that I'll give this ago with on red milo. Not having to sterilizing grains!?! That would be a major step forward in ease of cultivation.


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Offlineforrest
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Re: Pasteurizing Sawdust with Lime [Re: ghiajake]
    #19518749 - 02/04/14 12:00 AM (10 years, 21 days ago)

that's great!
it will probably serve best as a low tech method for people new to mushroom cultivation, for those who don;t have a pc yet, like the pf-tek, but will indeed probably not give consistent enough results for more intensive growing.


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Offlineghiajake
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Re: Pasteurizing Sawdust with Lime [Re: forrest]
    #19518838 - 02/04/14 12:37 AM (10 years, 21 days ago)

Quote:

forrest said:
that's great!
it will probably serve best as a low tech method for people new to mushroom cultivation, for those who don;t have a pc yet, like the pf-tek, but will indeed probably not give consistent enough results for more intensive growing.




The coolest thing is the ability to use the method in third-world countries, backwoods grow ops, or anywhere you only have fire as a heat source. Could be great for cloning wild specimens too, if it pans out.


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Offlineghiajake
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Re: Pasteurizing Sawdust with Lime [Re: ghiajake]
    #19547321 - 02/10/14 10:39 AM (10 years, 14 days ago)

Hey there folks, had enough of winter yet? :wink:  I wrote this on another page and I don't know why I didn't post it here before, but...

Quote:

On the three that are cased I used Red Oak sawdust, vermiculite, wheat bran, and hydrated lime and oven pastuerized at 200F for 3 hours. The casing was pasteurized 50/50 fine verm/peat moss. The 4 un-cased tubs were Red Oak sawdust, straw, hardwood mulch, wheat bran, cottonseed meal, and hydrated lime (done in the oven the same way). Each tub was 4-5 qt of substrate spawned with a 1/2qt of grain spawn. I don't think is was the oven pasteurizing that worked.  I believe it was the lime. I vacuum sealed all the mixed dry ingredients months before hand, and just added water before putting it in the oven. I'll have to dig out my notes, but I think I used 16 cups sawdust, 12 cups of coarse verm, 8 cups of bran, and a cup of lime per batch. Don't quote me on that though, I may be wrong. I still have a couple "logs" I think.




These are the pre-packaged "logs" of dry mix I was talking about above.



I can't find my notes on the ratios I did for either of the substrate mixtures now. Oh well. I did 3 cased and 4 uncased each of King and Pearl Oyster, and two small vertical logs of the Pearls as well. I flushed each of the 14+ blocks I made twice, then put them in fresh filter patch bags to be stored until spring outdoors growbed time. They still haven't shown any type of contams on any of the blocks. I'm confident in saying supplemented sawdust doesn't need PC'ing at all. Lime works just fine. Here's a wall of pics. :wink:



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Offlinedeadmandave
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Re: Pasteurizing Sawdust with Lime [Re: ghiajake]
    #19547363 - 02/10/14 11:01 AM (10 years, 14 days ago)

ghiajake,  you sent them all through the oven as well as using lime?


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Offlineghiajake
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Re: Pasteurizing Sawdust with Lime [Re: deadmandave]
    #19547472 - 02/10/14 11:37 AM (10 years, 14 days ago)

To be honest, the oven thing was mainly because I got the mixture a bit too wet and wanted to dry it out some. I have read that oven pasteurizing will usually fail, but I figured the lime would balance it out. I put a solid clay brick in the center of a metal washtub and poured the substrate all around it to help equalize the heat better, then covered it with foil (holes poked in it to allow evaporation). Half way through the bake I opened the tub and thoroughly stirred the substrate.


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InvisibleAleon
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Re: Pasteurizing Sawdust with Lime [Re: ghiajake]
    #19551538 - 02/11/14 09:04 AM (10 years, 13 days ago)

Good stuff guys. Inspiring Ghia!

Here's a quick update (also updated in OP):

For the Oyster "213" 5lb block i got .5lbs mushrooms on the first flush on 2/8. It took 36 days from inoculation till first flush (28 days incubation). With %20 bran i get 1st flush in 16-21 days from inoculation, and get 1-1.25lbs on first flush (also using 1/2 the spawn). Very dense and high quality mushrooms, but lower yield. Still acceptable in my eyes because of how easy it is to make-up (its perfect for a low tech home grower just getting into the hobby! Or making sawdust spawn to inoculate outdoor beds!)  Next im going to try some bran in there as well and see if i can up the speed and yields.



The Shiitake's are still consolidating; nicely.


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Re: Pasteurizing Sawdust with Lime [Re: Aleon]
    #19552161 - 02/11/14 12:22 PM (10 years, 13 days ago)

Thanks, Aleon. My idea of adding the lime to the dry mix before vacuum sealing was because the fresh sawdust (got it coming out of the chute at the sawmill) still had moisture in it and I didn't want the bran to mold. It was mainly an experiment on pre-packaging supplemented substrate for later use, and sale. That's why I saved a couple logs. Gonna test them out on this next round. Not sure what I'll spawn it with yet, gotta wait and see what grain bags do the best first. Test fruiting all the species I collected for the first time is kind of a pain in the ass, but is exciting none the less. After getting two mislabeled plates in a trade I wanna make sure everything is what it's supposed to be.

That is quite a difference in yield between the two on the first flushes. How many flushes you going for per block, as many as you can?


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