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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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Re: Pressure Cooker Alternatives?
    #16051 -

PF says to use a covered pot. Simmer the jars for an hour in water with the tops a little loose. Use as much water as you can w/o any bubbling into the jars. Put foil around the tops of the jar to further prevent water entering. Put a cloth under the jars so they aren't sitting directly on the hot bottom of the pot. I don't see why this won't work.
I use my vegitable steamer instead. It only holds 4 jars at a time, and the steam runs out after 40 minutes, but so far, I haven't had any contamination in the few times that I have colonized jars.


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If you see a purple cow, you're having a level four trip. If you become one, well, that's a level five.

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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16053 -

Hey dexy

I'm a first time grower and I used a big ass
s/s pot. I just boiled em for longer.
I got 3 contamed out of 5 but I was very carefull innoculating them.


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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16054 -

to be reasonable, you can use a pressure cooker or an autoclave.. use a pressure cooker.. its not expensive and worth it


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If I made affront, I apologize.
If I made affirmation, I apologize.
I merely came to listen, came to say.

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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16055 -

http://glider.yage.net/glider/aseptic.html

yeah, blatant self-promotion, I know.


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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16056 -

I dont see a big risk different with jars sterlized in a normal pot with boiling water, or jars sterlized in a presure cooker. The stem is what sterlizes, so it all works the same way, one thing I think I would do, because of what I have noticed -- use high quality tape, make sure that keep the holes covered...


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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: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16057 -

Try cooking the verm and rice flour in the oven before you add the water and put it it the jars - check the MMGG for how hot / how long to cook it. phrozen: the steam is hotter in a PC coz its under pressure, so it kills stuff that can survive at 100 degrees. This is also the idea behind the oven thing


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======================

"Flying Dick"

I can't drive
And now my index finger
Shows up in my nose.



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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16058 -

I've just been reading about contaminent fungi in the "mushroom cultivator". Some of them are incredibly heat resistant. Now I'm paranoid, and I'm going to buy a pressure cooker. The steam in a covered pot (and my steamer) is not much higher than the boiling point of water; steam in a pressure cooker can get much hotter.


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If you see a purple cow, you're having a level four trip. If you become one, well, that's a level five.

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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16059 -

When using a PF style substrate it is OK to use a regular steamer on a stovetop. The subststrate is light and airy and can be effectively sterilized with this method. When using larger jars than half-pint, or when using different, denser substrate mixes such as straight grain, using a pressure cooker/autoclave is advised. Use the PF style brown rice/vermiculite substrate in half-pint jars and steam them for one hour. This always worked 100% contaminant free for me.

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Baldy


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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16060 -

great idea but what do steamers look like arent they those thigs that look like a bowl inside a pot

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Re: Pressure Cooker Alternatives? [Re: magicpurplecow]
    #16061 -

You can use a regular vegetable steamer, sold as a three piece apperatus consisting of a pot, insert with holes, and lid. Or, you can buy an inexpensive, folding, metal steamer that will fit into a large cooking pot and is available in different sizes. Both work well for light substrates and both are available at most supermarkets in the cookware section. You can also improvise by using anything that will keep the jars off the bottom of the pot and will allow steam through as well.

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Baldy


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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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