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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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blackcow substrate
    #774563 -

quick question. can you just use straight black cow manure (or other composted cow manure) as a substrate? I have pc'ed it for 20 minutes and added crushed oyster shell, then i plan on pouring it over 12 pints of wild bird seed that are fully colonized. Am I missing anything?


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be the mushroom

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Re: blackcow substrate [Re: hispeed67]
    #774566 -

you want to pasturize composts and not sterilize them. The difference is the temperature. Pasturization reachs a peak of 175 degrees for one minute while sterilizing is holding a high (15 PSI = 240degrees ?) for a large period of time like 15-20 minutes.

If you sterilize compost you will have to spawn run it in bags. Pasturized poop can be spawned with whole grains like birdseed or rye.

...or something like that


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"There's only one corner of the universe you can be certain of improving and that's your own self. So you have to begin there, not
outside, not on other people" - Aldous Huxley

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Re: blackcow substrate [Re: phrozendata]
    #774645 -

actually, compost is pasteurized. It reaches temperatures of about 160-170 F during the composting phase. Contrary to popular belief P. cubensis doesn?t need microorganisms in the casing for the mycelium to pin, so sterilization can be used where contamination issues are a problem. (straight from the faq). Do i need to case the manure, or just use manure as the casing?


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be the mushroom

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Re: blackcow substrate [Re: hispeed67]
    #774806 -

try checking post- store bought compost... lets investigate in advanced forum.

i believe a few people reported terrible results with black cow compost.

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Re: blackcow substrate [Re: hispeed67]
    #774915 -

it doesnt need the micro organisms, but if you sterilize it, it kills everything, including bacteria that wont contaminate your substrate but make competition for invading bacteria. basically your putting up a sign that says "Vacancy" and can easily become home to all sorts of invading bacteria, thus the need to do it in bags if sterilized...

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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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