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OfflineDanimal
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Registered: 04/13/02
Posts: 76
Last seen: 14 years, 7 months
Boiling Water vs. Pressure Cooker
    #635312 - 05/18/02 11:28 AM (15 years, 2 months ago)

I'm about to embark on my first attempt to grow shrooms. From everything I've read, it's recommended to use a pressure cooker to sterilize the jars prior to innoculation. However I don't own one(nor do I have transportation) and read in a few sites that you can slowly boil the jars for ~1hour. I was wondering the success rate of using boiling water in preventing contamination, growing healthy mushrooms. Thanks


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Invisiblephrozendata
Carpal Tunnel

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Registered: 04/24/00
Posts: 5,015
Re: Boiling Water vs. Pressure Cooker [Re: Danimal]
    #635331 - 05/18/02 11:51 AM (15 years, 2 months ago)

It'll sterilize your jars good enough. A pressure cooker is just better because you can sterilize faster and at a higher temperature and pressure. When I first started I boiled my jars and shared a 9/10ths or 90% success rate. I've watched my friend go few a batch and a half now (18 jars) boiling w/o contamination.


--------------------
"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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OfflineSkankfeet
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Registered: 02/24/02
Posts: 74
Last seen: 13 years, 2 months
Re: Boiling Water vs. Pressure Cooker [Re: phrozendata]
    #635397 - 05/18/02 01:22 PM (15 years, 2 months ago)

You'll be fine boiling your jars...just make sure you follow directions to the letter, whatever tek you use. I personally think that letting them cool in the unopened pot so that they don't suck in contaminants with the air is very important. But then thats just my opinion and like assholes, everybody has one. Well I did know this guy that lost his in combat so thats not an entirely accurate statement so put an "almost" in front of everybody


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Invisiblepsilosinner
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Registered: 12/02/00
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Re: Boiling Water vs. Pressure Cooker [Re: Skankfeet]
    #635399 - 05/18/02 01:25 PM (15 years, 2 months ago)

you like my sig?????


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"I don't like people who take drugs... Customs men for example."
- Mick Miller -


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Offlinemushman420
member
Registered: 03/29/02
Posts: 179
Last seen: 15 years, 15 days
Re: Boiling Water vs. Pressure Cooker [Re: Danimal]
    #635420 - 05/18/02 01:50 PM (15 years, 2 months ago)

I just went out and bought a pressure cooker my first time and had great success
If you are serious about mushroom cultivating I would recommend getting one.


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Ive come from a distant planet for earth's woderful natrual drugs


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OfflineFarmerD
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Registered: 05/16/02
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Re: Boiling Water vs. Pressure Cooker [Re: mushman420]
    #636103 - 05/19/02 07:42 AM (15 years, 2 months ago)

On my first attempt I used a pot and boile for an hour, 3 of jars contamed...Using a PC, I get 100% sterility! No contams....yet.


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OfflineDERRAYLD
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Registered: 05/13/02
Posts: 1,712
Loc: South Africa
Last seen: 8 years, 8 months
Re: Boiling Water vs. Pressure Cooker [Re: FarmerD]
    #637106 - 05/20/02 03:18 AM (15 years, 2 months ago)

I`m not debating the superiority of the PC but I do think a pot works just as well.
I just finished inoculating 4 1pint jars, 3 with whole brown rice/vermicultie (yes whole brown rice not brf )substrate and one with straight brown rice.

I boiled the lot up in a pot for 1 hr, the brown rice/vermiculite jars were left with the self-sealing lids face down so the seal.
And then the straight brown rice I turned the lid over rubber up.
I left all 4 of these jars for 3 days and absolutely no contam.

So, I guess it`s entirely up to you and your methods.
I`m happy with just a pot, I`ve never used a PC so I dont know the difference.


--------------------
Derrayld and out of control


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InvisibleMushroom_Madness
enthusiast
Registered: 01/10/02
Posts: 261
Loc: Quaint New England Villag...
Re: Boiling Water vs. Pressure Cooker [Re: Danimal]
    #637118 - 05/20/02 03:34 AM (15 years, 2 months ago)

"Poster: Danimal
Subject: Re: Boiling Water vs. Pressure Cooker

I'm about to embark on my first attempt to grow shrooms. From everything I've read, it's recommended to use a pressure cooker to sterilize the jars prior to innoculation. However I don't own one(nor do I have transportation) and read in a few sites that you can slowly boil the jars for ~1hour. I was wondering the success rate of using boiling water in preventing contamination, growing healthy mushrooms. Thanks


If you are just using brown Rice flower with vermiculite, then a pot will do just fine. But if you wish to use grain, straw, or dung, a pressure cooker is a necessity my friend.


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