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RockOyster
Friend
Registered: 07/09/19
Posts: 5
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Sterilization times for grain spawn bags
#26098892 - 07/09/19 07:24 PM (5 years, 6 months ago) |
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I have 2 bags of grain spawn in the PC, however, I can't seem to find a good rule of thumb for sterilization time. The bags are about 6 1/2 lbs each and I have 2 of them in my Presto PC (23 qt).
They have been in for an hour at 17 psi, so quick responses are greatly appreciated.
I will be doing a G2G transfer with an entire quart of colonized rye spawn for each bag.
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southbounpachyderm
Stranger
Registered: 07/20/18
Posts: 282
Last seen: 4 years, 5 months
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Re: Sterilization times for grain spawn bags [Re: RockOyster]
#26098965 - 07/09/19 07:56 PM (5 years, 6 months ago) |
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Go another hour at least. Takes a while for bags to hit sterile core temps.
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Munchauzen


Registered: 06/22/11
Posts: 14,348
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usually do my bags for 3 hours. but be careful that you don't run your PC dry.
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RockOyster
Friend

Registered: 07/09/19
Posts: 5
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Re: Sterilization times for grain spawn bags [Re: Munchauzen]
#26098996 - 07/09/19 08:07 PM (5 years, 6 months ago) |
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They just hit the 1 1/2 hour mark and I think the PC will have enough water. The bags were elevated on 2-3 layers of rings and water reached ~1/2 up the lower bag. I'm still working out the kinks.
How large are your bags Munchauzen?
Stamets says that he sterilizes "standard" 10 lb bags for 4 hours, and gallon jars for 2 hours. Seems to me that I am somewhere in the middle.
Thanks ya'll!
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Funky Monkey
Human Suppository



Registered: 05/14/19
Posts: 1,099
Loc: In your MOM's poop shoot
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Re: Sterilization times for grain spawn bags [Re: RockOyster]
#26099225 - 07/09/19 09:26 PM (5 years, 6 months ago) |
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Run them for 2.5 - 3 hrs and you should be good.
I run that size bag 4 at a time in my 23 quart presto.

If you can do large 5lb dense sawdust blocks and be good at 2.5 hrs, then anything more than 3 hrs is overkill I think for a bag this size.
TIP: When prepping bags make sure your grains are much more on the dry side to avoid excess moisture and bacteria problems.
-Funky Monkey
Edited by Funky Monkey (07/10/19 11:40 AM)
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Boogieman47
Let's boogie


Registered: 03/05/16
Posts: 9,712
Loc: Under your bed
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Re: Sterilization times for grain spawn bags [Re: Funky Monkey]
#26099266 - 07/09/19 09:52 PM (5 years, 6 months ago) |
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They maybe water logged if you had that much water up the bag .. I put pint jars in the bottom and load with 3 qts water when running bags I also weigh my weight down with quarters 18 psi no hiss and cook for 4 hours but I do 5 full qt of grain per bag
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