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El_Flying_Mohawk
Stranger


Registered: 11/17/05
Posts: 147
Last seen: 13 hours, 47 minutes
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Overloading my PC?
#26999781 - 10/23/20 01:54 PM (3 years, 3 months ago) |
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Is the PC overloaded? Is 90min insufficient for the grain volume, especially without the PC venting?
Lately, I switched to 3T unicorn bags. I used to work with smaller bags thus sterilizing less grain per PC batch.
I load my 22qt PC with 2 x 3T bags with 7.5 quarts of oats each.

I used to do 90min @ 15 psi without venting (yup, I'm an idiot).
The colonization speed varies greatly from one bag to another even though I'm using the same amount of the same LC from an isolate. I was thinking it might be because there is too much grain per bag with insufficient GE
Never really had major apparent contams on the grain bags but I've been running into a few contam issues once in the tubs. I was questionning pretty much every other step but now I'm thinking it might be bad spawns.
So again, Is the PC overloaded? Is 90min insufficient for the grain volume, especially with no venting?
(just starting a small batch right now, I vented for 10min and will PC for 120min)
-------------------- Forever noob
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Forrester
aspiring sociopath


Registered: 02/05/13
Posts: 9,351
Loc: Northeast USA
Last seen: 1 month, 12 days
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I don't think that's overloaded, people commonly stuff 'em pretty full but I don't have a lot of experience with bags, I prefer jars. I'd try to get some lid rings against the sides at least, allow the steam to circulate better if possible.
And yes, 90 min is insufficient for bags. That probably explains your inconsistent colonization times (that and the lack of venting, as you know).
120min might not be enough either though, I can't remember but I think people go 2.5hrs for full bags? Someone else can correct if I'm wrong.
-------------------- Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here. ------------------- Have some medicinal mushrooms and want to get the most out of them? Try this double extraction method.
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Leftfield420
bong toker



Registered: 02/26/16
Posts: 10,042
Last seen: 49 minutes, 13 seconds
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Quote:
El_Flying_Mohawk said: Is the PC overloaded? Is 90min insufficient for the grain volume, especially without the PC venting?
Lately, I switched to 3T unicorn bags. I used to work with smaller bags thus sterilizing less grain per PC batch.
I load my 22qt PC with 2 x 3T bags with 7.5 quarts of oats each.

I used to do 90min @ 15 psi without venting (yup, I'm an idiot).
The colonization speed varies greatly from one bag to another even though I'm using the same amount of the same LC from an isolate. I was thinking it might be because there is too much grain per bag with insufficient GE
Never really had major apparent contams on the grain bags but I've been running into a few contam issues once in the tubs. I was questionning pretty much every other step but now I'm thinking it might be bad spawns.
So again, Is the PC overloaded? Is 90min insufficient for the grain volume, especially with no venting?
(just starting a small batch right now, I vented for 10min and will PC for 120min)
I cram my 75x's full(9 1 Gallon bags of spawn), vent for 10-15 minutes, bring the pc's up to 15-17psi and sterilize for 2.5hrs... you may need to up you pc cycle depending on the elevation you live at
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bodhisatta 
Smurf real estate agent


Registered: 04/30/13
Posts: 61,890
Loc: Milky way
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If you don't vent you're pressure cooking at 212-215 degrees even if your gauge says 15psi. Which = fail
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Leftfield420
bong toker



Registered: 02/26/16
Posts: 10,042
Last seen: 49 minutes, 13 seconds
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I didn't even notice he said he wasn't venting until now... thats no bueno... venting is a must
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