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Offlinelocalground
Stranger
Registered: 05/16/06
Posts: 46
Last seen: 15 years, 2 months
newb sterilization help
    #5940223 - 08/07/06 09:34 AM (17 years, 5 months ago)

this is my second attempt at growing. The first time failed due to some stupid mistakes i made , being over anxious. Anyhow. This time i made my own 1/2 pint jars instead of purchasing them. I followed the pf tek directions exactly. 1/4 cup brown rice flour , 1/2 cup vermiculite , 60cc of water and a dry protective vermiculite layer at the top. now im ready to sterilize. i dont have a pressure cooker. I have an oven though. Could i use that to sterilize if i cooked the jars in there around 200 degrees for a while? has anyone ever used this method before? How many degrees and for how long should i do it? Are there any other recomendations other than using a pressure cooker? Input will be very much appreciated. Thanks a lot.


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Offline76degrees
Apprentice

Registered: 06/08/06
Posts: 350
Loc: Middle Earth
Last seen: 17 years, 4 months
Re: newb sterilization help [Re: localground]
    #5940311 - 08/07/06 10:10 AM (17 years, 5 months ago)

You can just cook in a big pot on the stove. Make sure you put a cloth towel on the bottom of the pot so your jars don't crack. Cook your jars with the lid on the pot for 60min to 1hr and a half. I think all this is spelled out for you in the PF TEk. Read the PF Tek. Google it if you don't know what I'm talking about.


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The world is changed. I feel it in the water. I feel it in the earth. I smell it in the air. Much that once was is lost, for none now live who remember it.


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OfflineRogerRabbitM
Bans for Pleasure
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Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
Trusted Cultivator
OG Cultivator
Re: newb sterilization help [Re: 76degrees]
    #5940353 - 08/07/06 10:30 AM (17 years, 5 months ago)

Correct. Follow the tek. You can not sterilize in the oven. If your substrate reaches 212F/100C in the oven, by definition, all moisture will have totally evaporated from within. You need to boil the jars. Be sure they are wrapped so that the water that drips back down from the lid doesn't get into the jars.

The first investment you should make in the mycological hobby is a pressure cooker.
RR


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Download Let's Grow Mushrooms



semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
Thomas Edison


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OfflineDnBMiXer
Space Cap'n
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Registered: 07/26/06
Posts: 173
Loc: Outer Space
Last seen: 15 years, 10 months
Re: newb sterilization help [Re: RogerRabbit]
    #5940418 - 08/07/06 10:59 AM (17 years, 5 months ago)

pressure cookers are only 30 bucks at walmart
you can also look around thrift stores sometimes you can get a really big one for cheap


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Yes thats a smurf sucking a titty


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Offlinechubbmeister
meisterofchubb
Male

Registered: 03/21/05
Posts: 125
Loc: usa
Last seen: 6 years, 8 months
Re: newb sterilization help [Re: DnBMiXer]
    #5940613 - 08/07/06 12:03 PM (17 years, 5 months ago)

i got an 8qt pressure cooker at a thrift store for 10 bucks brand new.it's worth your time to dodge all the old lady bargain hunters lol


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InvisibleDickhead
2 Times
Female User Gallery
Registered: 01/24/05
Posts: 28,769
Loc: groin
Re: newb sterilization help [Re: DnBMiXer]
    #5940619 - 08/07/06 12:04 PM (17 years, 5 months ago)

use the pot and stove if you cant afford/find a good pressure cooker. I dont see the oven working at all.

If you want to be extra carefull. Boil em for 1hr. let cool for a bit. boil again for a half hour. I started doing this and my contam rates are much lower now.


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Multiplied


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