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OfflineAkira
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Bulk Steamer Pasteurizer Tek (Lots of Pics) * 6
    #6972036 - 05/27/07 02:34 AM (14 years, 7 months ago)

Ever dream about a way to pasteurize bulk amounts of substrate without putting all that much work into it?

A while ago I stumbled across an idea for a pasteurizer. The credit for the idea goes to Mycotopia. I have wondered for a while why I have not seen anyone (hardly anyone) use this here. I have altered the concept though.

My method is a combination of the system i picked up from Mycotopia, with a bag technique I picked up from Agar here on shroomery. For those of you who hate dealing with the dripping wet steaming pillow case method, this is definitely a good alternative.

I'm not going to hold your hand on a step by step procedure as it is already built. Be creative and build it in whatever method suits you best. Here is my Bulk Pasteurizing Tek.....

I went to Lowes and picked up a 50 Gallon Roughneck Tub.


I had one of these laying around so I decided to use this as my rack. Normal metal closet shelf.


Now this is the heart of the machine. You need to buy a 705 Model Wagner Power Steamer. They usually go for around 50 dollars.


Is that too expensive? No worries. I found a place that sells them rebuilt for $19.99!:eek: That's where I bought mine, works like new. Here is the link.;)
http://www.heartlandamerica.com/browse/item.asp?PIN=50148&

Here is what the Pasteurizer looks like.


You need a thermometer to check temperatures while pasteurizing. Just drill a hole in the middle of the lid and place your thermometer in center. regular meat thermometer works fine.


Now here is how I attached my Steamer to my tub. I used PVC attachments, cheap and effective as always.


In the inside I placed my rack. then I made a T shape with the PVC to bring from one end to the other of the tub. I also put to pieces of PVC as pillars to hold up rack when theirs a lot of weight.



I put PVC plugs on each end and then drilled a bunch of holes along the top of the PVC. This way steam is distributed evenly thought out the bottom layer of the tub.


Okay so once you have built your tub, you need to make your substrate bags. Here is the method I picked up from agar. You need  to buy some 2 MIL thick bags (Or I guess any bag suitable for the purpose that works). Uline sells them in quantities of 1000 for under $50.
http://www.uline.com/ProductDetail.asp?model=S-123&ref=154




Now you need to prepare your substrate. In this case I have some Casing I am pasteurizing. I like to pasteurize everything except grain jars, that you MUST sterilize. As you can see I use PH and Moisture meters to accurately measure exactly the results i desire. They're like $4 each at Lowes.


Then load up your substrate/casing into your bags and into your tub. Each bag can hold up to 6-8 quarts. This tub I'm using can hold 12 bags at a time. Here is a great post by agar on achieving proper moisture levels. This is very important.
http://www.shroomery.org/forums/showflat.php?Cat=0&Number=6799417&page=0&vc=&PHPSESSID=#Post6799417


I can pasteurize around 125-150lbs of substrate at a time with the sucker. It gets the tub to 165-170 degrees in about 30 minutes. all you have to do is fill up the reservoir tank every once in a while. Other than that you can just load up the bags, turn on your steamer and go watch some TV or read a book.:tongue2:


--------------------

Orissa India Bulk Grow (Tub Tek)
Bulk Steamer Pasteurizer Tek

"Our intention is our eternal fingerprint in the universe."

We know that God is good, and so are hamburgers and hot dogs. We know that hamburgers and hot dogs definitely do exist, so then by deduction of logic God too must also exist. Hamburgers + Hot dogs = God.... Duh


Edited by Akira (05/31/07 02:35 PM)


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Offlineboneynerd
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #6972116 - 05/27/07 02:54 AM (14 years, 7 months ago)

badass


--------------------
"Your mama's grow was so contaminated, the shroomery got trich." :headbanger:
-SpitballJediS

"your a female, no one woulda cared you were naked,hell probably made someone's day, but I pull my balls out on a bus and im the bad guy.."
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OfflineJazzCatCF
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #6972745 - 05/27/07 09:35 AM (14 years, 7 months ago)

nice work akira:thumbup:


--------------------
"There is a world beyond ours, a world that is far away, nearby, and invisible. And there it is where God lives, where the dead live, the spirits and the saints, a world where everything has already happened and everything is known. That world talks. It has a language of its own. I report what it says. The sacred mushroom takes me by the hand and brings me to the world where everything is known. It is they, the sacred mushrooms, that speak in a way I can understand. I ask them and they answer me. When I return from the trip that I have taken with them, I tell what they have told me and what they have shown me."

The Mazatec Wise Woman, Maria Sabina (1894-1985)


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Offlinefish42
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: JazzCatCF]
    #6972851 - 05/27/07 10:27 AM (14 years, 7 months ago)

awesome. i'm running out of places to put 30-50 gallon tubs, though.


--------------------
Do you dare to feel responsible for every dollar you lay down
are you going to make the rich man richer
or are you going to stand your ground
You say you want a revolution
a communal evolution
to be a part of the solution
maybe I'll be seeing you around.


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OfflineJustAHobby
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: fish42]
    #6974025 - 05/27/07 05:34 PM (14 years, 7 months ago)

Quote:

fish42 said:
awesome. i'm running out of places to put 30-50 gallon tubs, though.




Very true.

Please don't think I'm threadcrapping. I think this is a great idea that can also be improved and modified to suit each individual.

How are you sure that temperatures are even throughout? Is steam dispensed evenly, and thoroughly?

What if the entire tub were turned "on its side," i.e. a different tub that was taller than it was wide was used instead (steam rises, no?).

Are there any special sealing considerations you do for the PVC?

What safety concerns would the amateur be well advised to heed?

Are those bags the same material as "oven bags" or the filter patch bags available from Shroomery sponsers? Mods might get angry if you recommend a different supplier! Could pillowcases still be used?

Great start to a solid tek, looking forward to what this becomes!


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OfflineAkira
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: JustAHobby]
    #6974065 - 05/27/07 05:48 PM (14 years, 7 months ago)

Quote:

JustAHobby said:

How are you sure that temperatures are even throughout? Is steam dispensed evenly, and thoroughly?





Because I also have an extra thermometer I use to check the internal temperatures of the bags. They all usually reach even internal temperature at the same time.

I've run this setup a few times now. Works a charm every single time, havnt had any contams in a very long time..


--------------------

Orissa India Bulk Grow (Tub Tek)
Bulk Steamer Pasteurizer Tek

"Our intention is our eternal fingerprint in the universe."

We know that God is good, and so are hamburgers and hot dogs. We know that hamburgers and hot dogs definitely do exist, so then by deduction of logic God too must also exist. Hamburgers + Hot dogs = God.... Duh


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OfflineCryogenicz
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #6974080 - 05/27/07 05:51 PM (14 years, 7 months ago)

What size are those bags?

-Graham


--------------------
www.MycoPath.com
Mushroom Spawn, Cultures, Fungi Bags, Casings, Master Grain Jars, Bags for In-vitro, Laboratory supplies, and much more!
Mushroom Supplies. Fast Turnaround Times. Great Service.
orders@mycopath.com
enter code shroomery for 10% off product.

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OfflineAkira
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Cryogenicz]
    #6974093 - 05/27/07 05:56 PM (14 years, 7 months ago)

Quote:

Cryogenicz said:
What size are those bags?

-Graham



http://www.uline.com/ProductDetail.asp?model=S-123&ref=154


--------------------

Orissa India Bulk Grow (Tub Tek)
Bulk Steamer Pasteurizer Tek

"Our intention is our eternal fingerprint in the universe."

We know that God is good, and so are hamburgers and hot dogs. We know that hamburgers and hot dogs definitely do exist, so then by deduction of logic God too must also exist. Hamburgers + Hot dogs = God.... Duh


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OfflineCryogenicz
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #6974095 - 05/27/07 05:57 PM (14 years, 7 months ago)

I mean - how much weight of substrate.

-Graham


--------------------
www.MycoPath.com
Mushroom Spawn, Cultures, Fungi Bags, Casings, Master Grain Jars, Bags for In-vitro, Laboratory supplies, and much more!
Mushroom Supplies. Fast Turnaround Times. Great Service.
orders@mycopath.com
enter code shroomery for 10% off product.

www.FungiForum.com


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OfflineAkira
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Cryogenicz]
    #6974117 - 05/27/07 06:00 PM (14 years, 7 months ago)

Oh lol.

Im not sure. But filling them to about 3/4 full takes 6-8 quarts. If I were to guess (and Im a pretty good weight guesser) Id say about 10-15 lbs each, depending on how much you filled them up. But Uline sells every size imaginable if your looking for something larger. They send me a catalog with my order and they sure do have a lot of interesting things.


--------------------

Orissa India Bulk Grow (Tub Tek)
Bulk Steamer Pasteurizer Tek

"Our intention is our eternal fingerprint in the universe."

We know that God is good, and so are hamburgers and hot dogs. We know that hamburgers and hot dogs definitely do exist, so then by deduction of logic God too must also exist. Hamburgers + Hot dogs = God.... Duh


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OfflineNo_Life_G33k
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #6974271 - 05/27/07 06:48 PM (14 years, 7 months ago)

mighty nice!!!!

Why do you use bags and not just heap the substrate in there???

I do straw in a large ice chest - there a link in my signature- would there be much difference between using a rubbermaid and using an ice chest???

I went with the ice chest because of the insulation, and because the drain is handy.

I've even used a Vicks steamer/humidifier with ok results, but the Wagner Power Steamer is next on my list.
Does a lot of steam escape during the run???

and do you 'pre-heat' the unoit at all???

The only 'difficult' part of the steamer set up for me was having to wet the straw so that the heat would transfer better. Soaking the straw seemed a big pain in the arse, and I ended up just using a spray bottle(a slightly smaller PIA), a pump up sprayer was a better route.

Overall, a great write up.


--------------------
Hot Water Pasteuriztion - A How To Pictorial
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/4527808/an/0/page/0

Make your own shroom chocolates
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/4500682/an/0/page/5

guide with pix.


Make Your Own Magnetic Stirrer! How-To Tek w/ pix
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/5865949/an/0/page/3


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Offlinejccc
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: No_Life_G33k]
    #6974350 - 05/27/07 07:10 PM (14 years, 7 months ago)

Would it be possible to get a finer rack and sterilize bulk amounts of straw? not using the bags and letting the straw hydratte from the steam and be sterilized at the same time?


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Invisiblethallus
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: jccc]
    #6974388 - 05/27/07 07:23 PM (14 years, 7 months ago)

Nice work:thumbup:


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OfflineCryogenicz
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: thallus]
    #6974605 - 05/27/07 08:32 PM (14 years, 7 months ago)

Better route with straw is to boil water on the stove, and add it to straw in an ice chest.


--------------------
www.MycoPath.com
Mushroom Spawn, Cultures, Fungi Bags, Casings, Master Grain Jars, Bags for In-vitro, Laboratory supplies, and much more!
Mushroom Supplies. Fast Turnaround Times. Great Service.
orders@mycopath.com
enter code shroomery for 10% off product.

www.FungiForum.com


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Offlinejccc
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Cryogenicz]
    #6974815 - 05/27/07 09:27 PM (14 years, 7 months ago)

alright thanks im now finally having sucsess w/ grains


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OfflineBlufNBrent
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: jccc]
    #6974975 - 05/27/07 10:09 PM (14 years, 7 months ago)

Great job man. Gonna have to try this when I move to bulk.


--------------------
Just 4 Laughs, I would not in anyway break state, local or federal laws.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: BlufNBrent]
    #6975338 - 05/27/07 11:38 PM (14 years, 7 months ago)

Great idea. :mushroom2::mushroom2::mushroom2::mushroom2::mushroom2:


Edited by Bacchus (05/27/07 11:38 PM)


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Offlinebuddhahoodlum
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Bacchus]
    #6982625 - 05/29/07 05:36 PM (14 years, 7 months ago)

Good job akira that's crazy that you had the exact same idea as me except your's is more modded than mine. I also got this idea off of mycotopia and I thought it would work great for pastuerizing poo and maybe straw too what do you think? Thanks for the bag idea's I wasn't quite sure how I was going to do that but now you have given me some great tip's that I will def be using. Also you can't get the steamers from heartland america anymore because they are all sold out so instead I just bought mine from ebay and it's about the same price on there aswell.


--------------------
“I believe that water will one day be employed as fuel, that hydrogen and oxygen which constitute it, used singly or together, will furnish an inexhaustible source of heat and light, of an intensity of which coal is not capable.” – Jules Verne, T

“Ere many generations pass, our machinery will be driven by power obtainable at any point in the universe...it is a mere question of time when men will succeed in attaching their machinery to the very wheel-work of nature."
- Nikola Tesla



Edited by buddhahoodlum (05/29/07 05:55 PM)


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OfflineAkira
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: buddhahoodlum]
    #6987791 - 05/30/07 05:55 PM (14 years, 7 months ago)

I see no reason why it should work with straw. As long as you chop it up finely I guess. But then again ive never worked with straw so im not too familiar with it...

Quote:

No_Life_G33k said:
mighty nice!!!!

Why do you use bags and not just heap the substrate in there???

I do straw in a large ice chest - there a link in my signature- would there be much difference between using a rubbermaid and using an ice chest???

I went with the ice chest because of the insulation, and because the drain is handy.

I've even used a Vicks steamer/humidifier with ok results, but the Wagner Power Steamer is next on my list.
Does a lot of steam escape during the run???

and do you 'pre-heat' the unoit at all???

The only 'difficult' part of the steamer set up for me was having to wet the straw so that the heat would transfer better. Soaking the straw seemed a big pain in the arse, and I ended up just using a spray bottle(a slightly smaller PIA), a pump up sprayer was a better route.

Overall, a great write up.




I was going to use an ice chest but i wanted a large one and the 150 quarts were going for over 100 dollars. I had one of the tubs extra laying around so decided to try it out with this one. this is the first steamer pasteurizer i build so their is definately room for much improvement in the future. A cooler will definately raise the temps in their even more i bet...


--------------------

Orissa India Bulk Grow (Tub Tek)
Bulk Steamer Pasteurizer Tek

"Our intention is our eternal fingerprint in the universe."

We know that God is good, and so are hamburgers and hot dogs. We know that hamburgers and hot dogs definitely do exist, so then by deduction of logic God too must also exist. Hamburgers + Hot dogs = God.... Duh


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Offlinebuddhahoodlum
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #6987995 - 05/30/07 06:56 PM (14 years, 7 months ago)

Since I have the cooler I'm going to have to drill holes in the top to keep the temp down. Did you have any trouble with your's overheating without the holes. Also how much did the tub like you've got cost? Mine was like $60 so if I could find somethin cheaper that'd be great.


--------------------
“I believe that water will one day be employed as fuel, that hydrogen and oxygen which constitute it, used singly or together, will furnish an inexhaustible source of heat and light, of an intensity of which coal is not capable.” – Jules Verne, T

“Ere many generations pass, our machinery will be driven by power obtainable at any point in the universe...it is a mere question of time when men will succeed in attaching their machinery to the very wheel-work of nature."
- Nikola Tesla



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Offlinesomebody041
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: buddhahoodlum]
    #7009812 - 06/04/07 10:55 PM (14 years, 7 months ago)

thanks for the instructions


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #7179108 - 07/15/07 02:52 PM (14 years, 6 months ago)

This is sooo possible.Went to lowes for about 80.00 you can get everything new.It does drip where you plug in the power steamer.Any suggestions?But you can put something under it.The temps go all the way to 180f.I thought it was at 140f-160f to pasteurize, but i guess 180f will not harm anything.There is soo much room in this monster!!!
Thanks alot for the post.It's great.........


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OfflineXOCHI
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #7179113 - 07/15/07 02:54 PM (14 years, 6 months ago)

i don't know how to post pics.I thought jpg would work i can't name them pdf,how do i post pics?


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Invisiblelegallyhomeless
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: XOCHI]
    #7179720 - 07/15/07 05:40 PM (14 years, 6 months ago)

180f will harm if pasteurizing poo. I would like to make one and give it a try but I agree it does need some improvements. Im just not convinced the tub will keep a perfect 160-170.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: legallyhomeless]
    #7183369 - 07/16/07 03:36 PM (14 years, 6 months ago)

Just a word of advice, if you're planning on put something like this together you might want to make sure you grab CPVC and not just normal PVC because CPVC is rated at 100 PSI @ 180(F) degrees...whereas normal Schedule 40 PVC is only rated 100 PSI @ 73(F) degrees (cold water only).

I guess it's just the organic gardener in me thinking about the highly toxic chemicals being released when the piping is subjected to temps beyond it's maximum rating.  I mean, after all, at the end of the day, the point is to put the finished products into our bodies.

As always, YMMV...

:justdontknow:


--------------------
:justdontknow: Don't mistake my tone for a "matter-of-fact" attitude.  I'm just presenting what I believe to be correct, until I'm corrected...

- How Myco-Curious Prepares Coir & Compost Substrates
- How Myco-Curious Builds A Bulk Humidifier
- How Myco-Curious Builds An Automated Greenhouse
------------------------------------
figgusfiddus said:
Keep in mind that inoculating or whatever in front of a flow hood won't help your bad substrate, your bad inoculant, your bad sterile procedure, etc. etc. etc. It's not a +3 flowhood of magic, it's just a tool.


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Offlinedeucydoo
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: mycocurious]
    #7183438 - 07/16/07 03:52 PM (14 years, 6 months ago)

i would think that copper piping would work just as well. they even make copper glue for those who dont solder very well. all the same fittings are avalabe and you dont have to worry about temp or pressure.


--------------------
I have been there and back, although it was somthing i had to do i dont recomend it for others, at least not with my travel agent.


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Offlinepcubmycol
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: deucydoo]
    #7183480 - 07/16/07 04:09 PM (14 years, 6 months ago)

oops


--------------------
weretheshit.com is the shit!

:-D


Edited by pcubmycol (07/16/07 04:24 PM)


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Offlinepcubmycol
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: pcubmycol]
    #7183489 - 07/16/07 04:12 PM (14 years, 6 months ago)

**and always remember to install a drain on the bottom with rubber washers on both sides of it


--------------------
weretheshit.com is the shit!

:-D


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Offlinexeallos
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: pcubmycol]
    #7183941 - 07/16/07 06:13 PM (14 years, 6 months ago)

Sick Akira, simply sick... I've been needing to get off the jar boiling kick...

I was thinking that "extra" tub of yours looked familiar, now I know how you filled all those others fatties up with such efficiency.

:bowdown:


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: xeallos]
    #7389790 - 09/09/07 11:14 PM (14 years, 4 months ago)

how many holes do you poke in the uline bags for the steam to moisturize the compost?


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #7389894 - 09/09/07 11:44 PM (14 years, 4 months ago)

you dont poke holes in it, you just dont completely seal the top of it.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: deformedreality]
    #7389916 - 09/09/07 11:50 PM (14 years, 4 months ago)

what about drying do u just let dry in the uline bags or layout to let drain as if youd soaked.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #7389920 - 09/09/07 11:51 PM (14 years, 4 months ago)

um.. you make it the right moisture level before pasturizing it... then let it cool and use it.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: deformedreality]
    #7389955 - 09/10/07 12:04 AM (14 years, 4 months ago)

ummm ok


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: down44]
    #7431499 - 09/20/07 11:18 AM (14 years, 4 months ago)

Straight up off the chain idea. I love misappropriation of appliances. my only question is how do you hold the required band of 160-170 degs? Does the steamer coincidently have a output temp of that or do you need it on a timer, which i think would be extremely difficult to calibrate.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Madox_01]
    #7431935 - 09/20/07 01:51 PM (14 years, 4 months ago)

Boiling Water = Steam = 212(F) at sea level.

But it's going to start cooling as soon as it gets away from the boiling water and depending on the size, insulation, etc. of your container that you're piping the steam into you might only be able to get the ambient temp to around 180(F).

In my case, my container is a 55-gallon "deck box" and I had to use two steamers to get the temps over 170(F) when fully loaded and that's no good...

The reason most people have a hard time with sterilization is because they fail to realize that it takes a higher temperature outside the pillowcase, quart jar or in our case, the u-line gusseted poly-bags.

It might take 30 minutes before the internal temps of the bags gets to 140(F) and _then_ you're supposed to begin timing out the 60-90 minute duration for the pasteurization.

What you're trying to find out is...

1. how long does it take until my mixture reaches an internal temperature of 140(F) or higher.

2. how long do I need to leave the steamer on after that point is reached...

---
For me it takes 15-30 minutes before the whole load is at 140(F) and then the steamer runs out of water about 45 minutes later (roughly) but the temps stay steady for another 45 minutes before the bags fall back below 140(F) degrees range.

Took me about a week of testing to figure that out...


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #9243801 - 11/14/08 02:04 PM (13 years, 2 months ago)

this is now my favourite thread


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: travelleler]
    #9286632 - 11/21/08 06:36 PM (13 years, 2 months ago)

I agree. Maybe the temp could be adjusted by having a bleed off valve. so once the desired temp is made you can throttle off some of the steam to maintain...... probably need 2 one constantly and one throttled once up to temp??????

why use steam???? can you stick a small ceramic heater in it to help temps come up????? why steam  why not just oven??????


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: buddhahoodlum]
    #9286653 - 11/21/08 06:38 PM (13 years, 2 months ago)

This is BAD ASS!

Rated! 5

nice tek man.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #9287122 - 11/21/08 07:48 PM (13 years, 2 months ago)

Great idea, i must have one..


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: hunter4321]
    #9287978 - 11/21/08 10:04 PM (13 years, 2 months ago)

this thread is a year old but seems like a great concept.  Is anyone using this with success?  My biggest concern is that it would get too hot in an hours time.  You don't want to exceed 170 degrees for correct pasteurization.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: imnotthere]
    #9288159 - 11/21/08 10:38 PM (13 years, 2 months ago)

Quote:

imnotthere said:
My biggest concern is that it would get too hot in an hours time.  You don't want to exceed 170 degrees for correct pasteurization.




Once you hit the top end of your temp range, turn the steamer off.  When the temp falls back down to lower end of your temp range, turn it back on.  I'm sure that would maintain temp nicely, being sealed and insulated and all..


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: J3illy]
    #9289549 - 11/22/08 02:41 AM (13 years, 2 months ago)

do large rubbermaid and sterlite tubs stand up well to boiling temperatures?  I got a nice tub I could try with this.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: 4 ho cultivar]
    #9289817 - 11/22/08 03:34 AM (13 years, 2 months ago)

im only guessing but maybe because the temp is high enough to kill bacteria but at the same time the steam keeps the substrate moist... which is good.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: J3illy]
    #9294601 - 11/23/08 12:42 AM (13 years, 2 months ago)

Quote:

Once you hit the top end of your temp range, turn the steamer off.  When the temp falls back down to lower end of your temp range, turn it back on.  I'm sure that would maintain temp nicely, being sealed and insulated and all..




yeah- I had this brainstorm about converting a big 40 gallon ice-chest to do the job.  That would hold the heat in for hours!

:sandwich:  :brucelee:


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: travelleler] * 1
    #12544781 - 05/11/10 08:25 PM (11 years, 8 months ago)

Curious,

Is anyone else using this method? It be sweet to see other projects based off this Tek.

Where is Akira these days?

I just got my 705 Whoo Hoo!:grin:


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Barakanaten]
    #12545079 - 05/11/10 09:17 PM (11 years, 8 months ago)

Why?  You can accomplish the exact same thing for less money, parts, work, etc.

Step 1:  Buy some oven bags
Step 2:  Use the pre-built pasteurizer located in your kitchen (oven)


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tajmahal420]
    #12545698 - 05/11/10 11:00 PM (11 years, 8 months ago)

Quote:

tajmahal420 said:
Why?  You can accomplish the exact same thing for less money, parts, work, etc.

Step 1:  Buy some oven bags
Step 2:  Use the pre-built pasteurizer located in your kitchen (oven)





That's an excellent idea too:thumbup:

The thing I like about Akira's bulk pasteurizer is it is somewhat mobile.

I would Imagine you could Pasteurize allot in the oven. Probably comparable to the Bulk Pastu Tek if not more.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Barakanaten]
    #12545808 - 05/11/10 11:18 PM (11 years, 8 months ago)

An oven is bad because it will dry out your substrate.


I just got a Wagner 705 for cheap on e-bay and made this same setup using the same tub. This setup works great!!!


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Barakanaten]
    #12545835 - 05/11/10 11:24 PM (11 years, 8 months ago)

I can fit 4 full bags of substrate in my oven, nowhere near what OP is doing.

I'd say 4 full oven bags is around 8 gallons, give or take.  Plenty to do 2 30 gallon monotubs, or 3 18 gallon tubs.

If your oven is electric, line a rack with foil, and put it on the bottom "rung" of your oven.  You don't want the corners to droop down and touch the bottom heating element, it'll burn a hole and dry out the substrate.

Lay the bag nearest the front of the oven on it's side, so you can stick a meat or candy thermometer in there and monitor the temperature.  Try to get the end of the thermometer as close to the center of the substrate as you can.  Don't tie the bags off tight, steam pressure could make the bag pop, and you'll have a shitty oven to clean.

The only problem with this method, is evaporation.  Although, I don't see it as a problem, but others might.  You will have some evaporation through steam, which dries it out a little.  I don't see it as a problem, because my substrates on the dry side colonize quicker.

If you don't want to deal with that "issue", add a little more water, a little bit past field capacity, but not sopping wet.

I pre-heat the oven to 250F, load my bags in there, and give it an hour.  It should be at ~100F or so at that point, but climbing.  I then drop the temp to ~150F (which is "warm" on the oven dial, and in another half hour the thermometer shows perfect pasteurization temperature and holding, and I start the 60 minute timer.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Messiah of Savants]
    #12545837 - 05/11/10 11:25 PM (11 years, 8 months ago)

Quote:

Messiah of Savants said:
An oven is bad because it will dry out your substrate.


I just got a Wagner 705 for cheap on e-bay and made this same setup using the same tub. This setup works great!!!




I addressed that issue above.

Oh, and make sure you fill the bags somewhat evenly.


Edited by tajmahal420 (05/11/10 11:26 PM)


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tajmahal420]
    #12545960 - 05/11/10 11:53 PM (11 years, 8 months ago)

I payed 20$ for the Wagner and that's it. I already had the tub and tubing, silicone, and racking. So it's not expensive at all.

I also like the portability so I can have it in my spare room, basement, or garage and not in my families kitchen. People really appreciate this.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Messiah of Savants]
    #12545979 - 05/11/10 11:58 PM (11 years, 8 months ago)

Forgive me for offering an alternative to someone.  And someone who seemed to like and appreciate the idea.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tajmahal420]
    #12546701 - 05/12/10 03:06 AM (11 years, 8 months ago)

skip the plastic bags, use burlap bags also available at uline. Your substrate will never ever come out more than field capacity and will be much more evenly heated by the steam.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: sandman420]
    #12549068 - 05/12/10 04:16 PM (11 years, 8 months ago)

Quote:

sandman420 said:
skip the plastic bags, use burlap bags also available at uline. Your substrate will never ever come out more than field capacity and will be much more evenly heated by the steam.






:awethumb: Makes sense thanks. Different setups for different situ's

That's why I like this community everyone has very innovative ways and lots to offer.

Anyone else had experience with the bulk pasteurizer? What are the temps your getting and what have you done to remedy? i.e not enough heat or too much, I was thinking of a design for a blow off valve or too. I will post when I am done building.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Barakanaten]
    #12552803 - 05/13/10 01:55 AM (11 years, 8 months ago)

*Bump


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Barakanaten]
    #12590374 - 05/19/10 06:58 AM (11 years, 8 months ago)

:woot:

Just got my Wagner 705. Time to get to work :stirthepot:





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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tajmahal420]
    #12640154 - 05/27/10 07:23 PM (11 years, 7 months ago)

Quote:

tajmahal420 said:
Why?  You can accomplish the exact same thing for less money, parts, work, etc.

Step 1:  Buy some oven bags
Step 2:  Use the pre-built pasteurizer located in your kitchen (oven)




Good point.  ...but working the poo in the garage sounds
like an enhancement to me.  People have often posted about
how less-than-disgusting poo smells when heated, but I still
wonder if a garage option is an advantage.

I will keep my eyes open for a cheap steamer.  I am going to
need to pasteurize some media soon, but not that much at this stage.

One thing that I am not entirely clear on is where and how many
steam escape holes this design has.  I believe (?) that these tools
push out a fair stream of steam.  This is not compressible and will
need to come out of the tub somewhere, or there will be no flow
through the tub.  How large is the thermometer hole?  Is this the
port that I am thinking of?

Take care,

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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Javadog]
    #12640354 - 05/27/10 07:49 PM (11 years, 7 months ago)

This is a really cool idea. I hope I get the privilege of needing to do that one day.


Edited by Base Icks (05/27/10 07:50 PM)


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Base Icks]
    #12640414 - 05/27/10 07:59 PM (11 years, 7 months ago)

I made one of these, however, I used fuel line hose and hooked it up to my pc. I find that I have to use blankets to get it up to 175 and then remove them a little when it gets to hot. Works fantastic, I like that yours is portable though.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Ozzy]
    #12777962 - 06/21/10 11:59 AM (11 years, 7 months ago)

Akira, kick ass project!


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Javadog]
    #12778056 - 06/21/10 12:27 PM (11 years, 7 months ago)

tubs are not air tight. The unit doent produce that much steam either. There is no need for any blow out valves or anything like that. Good luck with the projects!

The wagner will not produce enough steam to pastuerize something this large if the ambient temps are lower than 60 degrees or so, I know from experience. You would be sitting there 4 hours later after 2 refills wondering why the internal temps are just now getting to 100f.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: sandman420]
    #12870752 - 07/09/10 02:59 AM (11 years, 6 months ago)

sorry to raise an old thread but i read this liked the thought and ingenui9ty of it all, and think the idea should be shown again but im going to stick to my

1 . boil one gallon of water
2. put brick of coir in 5 gallon homer bucket
3. put two cups of vermiculaite in bucket
4. dump boiling water into bucket
5. attach special lid (lid with poly filled breather hole)
6  wait 10 minutes, and stir with isoproply wiped peice of rebar
7  re atach lid

7(b) if out of verm use 3/4qts water

In a pinch once, i was short on time and knocked out 20 bricks in under two hours, also with this method if you have the portible stove tops you can do it in your garage, i know this is slightly off topic and i just might build something like this just so i can impulse seal up my coir for later use, good thread.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Montock]
    #13061749 - 08/17/10 12:17 AM (11 years, 5 months ago)

Akira steps up and strikes one out of the park! I should change my user name to "RR and Akira wannabee" If you guys like this, check out Akira's Orissa I. bulk grow, it too rocks the house. I have a HUGE cooler I bought for my pontoon, pontoons broke as hell, I now have a use for it!


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Offlinetobeacagefighter
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Calopolus]
    #13701048 - 12/29/10 03:48 PM (11 years, 29 days ago)

I'm going to attempt to use this to pasteurize mesh laundry bags filled with straw.. I haven't seen anyone try this yet. I've tried once with no success because I used a pillowcase which didn't allow for moisture penetration once it got wet -- something I overlooked. Also I've found that sealing any vent holes on/underneath the handles with RTV silicon helps to increase temperatures. I was able to get it up to 170 no problem once I did this, and it was about 50 degrees at the time. Anyway I'll let ya'll know how it goes.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tobeacagefighter]
    #13701549 - 12/29/10 05:23 PM (11 years, 29 days ago)

steaming straw is a bit tricky, you cant let it get to hot or itll sterilize it and then lead to contams right away, apparently this is the best way to pasturize it..straw pasturizer tec


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Offlinetobeacagefighter
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Ozzy]
    #13701599 - 12/29/10 05:35 PM (11 years, 29 days ago)

I'm familiar with that tek, though I've never used it. However I feel that as long as the temperatures are maintained within the proper range and that the bag allows proper penetration of the straw with steam that it could be a good method of pasteurization. Nobody else seems to have tried such a thing yet. My plan is to get 4-5 mesh laundry bags and fill each one with a relatively small amount of straw (already chopped/washed), get the temps up and then plop 'em in for an hour. I think it'd ultimately be much cleaner than using a hot water bath. Also, it'd make spawning quicker and more sterile -- empty a bag, then spawn, another bag, then spawn.


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tobeacagefighter]
    #13701631 - 12/29/10 05:41 PM (11 years, 29 days ago)

All I can tell ya is I have tried it and can be tricky to keep the temps where you need them, the straw on the bottom gets the hotest stream and that where the problems arise it gets 200 degree steam pumped on  it for the whole process it is to hot for straw.,. Look in my sig at the live steam box., I've been using it for a few years now.. whatever you decide good luck.


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Offlinetobeacagefighter
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Ozzy]
    #13701829 - 12/29/10 06:27 PM (11 years, 29 days ago)

That does make sense now that you put it like that... what substrate would you recommend?


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tobeacagefighter]
    #13701835 - 12/29/10 06:29 PM (11 years, 29 days ago)

OH and DUDE... I have the EXACT same bubbler. It's name is the Orbitron... props


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tobeacagefighter]
    #13701845 - 12/29/10 06:32 PM (11 years, 29 days ago)

any thing but straw works fantastic,stellar even.

You could raise the rack away from where the steam comes out and put in a vent, but that takes space away from the whole deal, where as you could do the hot water bath with much more in the same size tub..


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Offlinetobeacagefighter
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Ozzy]
    #13701915 - 12/29/10 06:44 PM (11 years, 29 days ago)

Hmm.. perhaps rotating the CPVC inside of the steambox could prevent this issue? Maybe one side facing horizontally forward and the other backward could let the steam be evenly distributed still while allowing it to cool before reaching the straw?

I want to do straw because of $$... However if it's not going to work I don't want to waste my time. Do you put your substrate in small plastic bags at field capacity with a rubber band around the top as in the other tek I saw, or do you have a different method?


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: tobeacagefighter]
    #13701933 - 12/29/10 06:48 PM (11 years, 29 days ago)

yup, field capacity first, then into a regular garbage bag, then when it comes out and cools, I just pour in my spawn into that same bag to mix...

Perhaps if you have more questions you should pm me so we don't clutter up Akira's thread.:smile:


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Ozzy]
    #16113693 - 04/19/12 11:30 PM (9 years, 9 months ago)

This is really badass!! Great Job man, just Epic if I don't say!!!! Had to have this in my thread list FOR ALL TIME!:rockon::inlove3:


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Invisiblecubes4cancer
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Big_Sexy]
    #16113725 - 04/19/12 11:35 PM (9 years, 9 months ago)

yessir! bookmarked :grin:


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$$"IM ON A RAMAN NOODLE EVERY NIGHT BUDGET"$$
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ROGERRABBIT: P cubensis will grow on stuffed animals, bibles, quarter pounds of weed, bras, etc.
In other words,it's hard to fuck up a cube grow.
RR


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Offlineafwolf33
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: cubes4cancer]
    #16995646 - 10/09/12 03:52 AM (9 years, 3 months ago)

I've been trying to come up with a way to pasteurize with out boiling crap.  This is perfect awesome thanks a ton!


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Offlineorigin novice
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #19788250 - 04/03/14 09:48 AM (7 years, 9 months ago)

how exactly did you get the shelf to stand? and are there holes along that pvc like a PHAT steam percolator??


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Offlinefunga
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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #22480603 - 11/05/15 12:52 PM (6 years, 2 months ago)

Great post! Thank you so much!
I was readin that Akira is using a moisture meter to control properly the moisture level of the substrate...cool!But i have a question..
I want to pasteurize poo, can you tell me what the reading on the moisture meter should be for a proper level of moisture of the manure?:pipesmoke:
Thank you again:aum:


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: Akira]
    #26457671 - 01/28/20 11:20 PM (1 year, 11 months ago)

That's Brilliant!!!!! Ive ordered my pressure generator!


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: caderpillar]
    #26748227 - 06/16/20 06:37 AM (1 year, 7 months ago)

What’s a pressure generator catpiler? Good to see all this action on a 10 year old post! I was just in Goodwill looking for shit to mod and ran across a Wagner 705 for $9 but couldn’t remember the model number but luckily remembered reading this and was able to find this thread. So glad I bought this model and works great


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Fine. One more one more time but then that's it!


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: 1more]
    #26748228 - 06/16/20 06:39 AM (1 year, 7 months ago)

Ooh ooh one more post by 1more and I can read the journal referenced b here


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Fine. One more one more time but then that's it!


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Re: Bulk Steamer Pasteurizer Tek (Lots of Pics) [Re: 1more]
    #26748233 - 06/16/20 06:41 AM (1 year, 7 months ago)

U guys rock

I am ready for the keys to my castle


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Fine. One more one more time but then that's it!


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