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cubezoid
Stranger
Registered: 01/25/12
Posts: 63
Last seen: 10 years, 7 months
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Hpoo overcooked?
#15944639 - 03/14/12 12:14 AM (11 years, 11 months ago) |
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Hey guys, so my friend wants to grow cubes with a pf tek but on hpoo substrate. feb. 9th he used an old pressure cooker to sterilize a mix of half verm half old whitened field weathered hpoo for 3 hrs at 15 psi. after he inoced them there was no sign of growth for a week but temps were down to 65 F so he got an incubation chamber. after 4 days in that they began growth and are currently only half colonized (or less). hes not sure if there was too much moisture in the jars, or too much verm, or the hpoo was too old so for his next batch he used fresher (but still old) hpoo, roughly 10% verm, and made sure to maintain FC for moisture. Again this was pc'd for 3 hrs.
he is worried that his shitty old pressure cooker may be adding something to the substrate (leaching metals from the insides), or increasing water content inside jars (even though he used foil over the top) or is burning/overcooking the substrate (it does appear darker than before pcing). if this next batch takes as long despite improved conditions, i think he will get a new pc. as is this one doesnt seal well and steams out a lot of water.
any experience with this stuff? is he pc'ing too long? THANKS!
i will try to attach a few photos..one of his jars which have been at it since 2/9, another of what he did today. how does moisture content look? is the darker one burned or something?
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mech head
student from califonia

Registered: 09/16/11
Posts: 3
Loc: the high desert
Last seen: 11 years, 10 months
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Re: Hpoo overcooked? [Re: cubezoid]
#15944655 - 03/14/12 12:23 AM (11 years, 11 months ago) |
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that shit looks burnt. why three hours?
-------------------- sustainable automagyc
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cubezoid
Stranger
Registered: 01/25/12
Posts: 63
Last seen: 10 years, 7 months
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Re: Hpoo overcooked? [Re: mech head]
#15944673 - 03/14/12 12:26 AM (11 years, 11 months ago) |
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My friend thought he read somewhere that hpoo takes longer to sterilize because it has so much surface area and has been exposed to outdoor contams. The foil makes it look bad because it was sitting in the water and got leached, so it became discolored.
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thedoc8
TooMuch


Registered: 05/18/07
Posts: 442
Last seen: 11 years, 3 months
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Re: Hpoo overcooked? [Re: cubezoid]
#15945260 - 03/14/12 07:13 AM (11 years, 11 months ago) |
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Quote:
cubezoid said: My friend thought he read somewhere that hpoo takes longer to sterilize because it has so much surface area and has been exposed to outdoor contams. The foil makes it look bad because it was sitting in the water and got leached, so it became discolored.
For those little jars 1 hour is plenty. For qt jars I go 90 minutes.
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scross
Stranger



Registered: 08/08/08
Posts: 4
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Re: Hpoo overcooked? [Re: thedoc8]
#15945374 - 03/14/12 08:20 AM (11 years, 11 months ago) |
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I don't normally post obviously but had to say something here. Never pressure cook hpoo, you need to pasteurize it @ around 160 for an hour to an hour and a half. I myself do small batches so I just load up jars of hpoo mix and submerge in water with a weight over the jars to keep them covered in water, put a thermometer into one of them and bring he temp up to what I said and adjust the heat on and off keeping the temp constant. There is good bacteria that you do not want to kill, pressure cooking it takes all the nutes away and mushies love the nutes. There are many different ways to pasteurize, just use the search.
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cubezoid
Stranger
Registered: 01/25/12
Posts: 63
Last seen: 10 years, 7 months
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Re: Hpoo overcooked? [Re: scross]
#15946779 - 03/14/12 03:21 PM (11 years, 11 months ago) |
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But do you guys think I could still have success with it? Maybe if i did an LC inoculation?
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