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North Spore Shop: Bulk Substrate, Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies

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Offlinerizzle
Fungus Lover

Registered: 08/21/04
Posts: 11
Loc: fla
Last seen: 18 years, 1 month
Is 35 minute PC sterilization sufficient?
    #3046415 - 08/25/04 06:51 AM (18 years, 3 months ago)

Hey guys,

Quick question... I have about 20 pf jars that have been sterlized in a pressure cooker for 30-35 mins. I thought I read somewhere that 30+ mins at 15 PSI was sufficient, but after rereading the teks, every one of em says 45-60 mins.

Think I'll be ok? or should I resterilize?

TIA!
Rizzle


Edited by rizzle (08/25/04 07:07 AM)


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Offlinesublimesubmind
enthusiast
Registered: 05/26/04
Posts: 264
Last seen: 16 years, 4 months
Re: Is 35 minute PC sterilization sufficient? [Re: rizzle]
    #3046675 - 08/25/04 07:57 AM (18 years, 3 months ago)

well, i go about 50min, but the first 20 is just for the pc to get up to pressure...


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Anonymous

Re: Is 35 minute PC sterilization sufficient? [Re: rizzle]
    #3046690 - 08/25/04 08:00 AM (18 years, 3 months ago)

i would follow the dirrections. they were made for a reason.

peace


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Anonymous

Re: Is 35 minute PC sterilization sufficient? [Re: rizzle]
    #3046746 - 08/25/04 08:18 AM (18 years, 3 months ago)

if PF says 45.......then why question a master? a little longer wont hurt....but make sure to let the jars cool in the cooker, as dumping the pressure may cause the jars to "boil" and lose some of your H2o content.....

peace


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Offlinerizzle
Fungus Lover

Registered: 08/21/04
Posts: 11
Loc: fla
Last seen: 18 years, 1 month
Re: Is 35 minute PC sterilization sufficient? [Re: ]
    #3047755 - 08/25/04 04:48 PM (18 years, 3 months ago)

Yea, Time to resterilize! I figured as much but just wanted some confirmation. Total time in the cooker is well 2 hours. 20 mins or so to get up to pressure, 35 mins processing time, then at least 1.5 hours to cool in the cooker.

So my next question, should I toss all the substrate thats been sterilized already, and use brand new substrate? Or could I just put the jars in the pc and resterlize?


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InvisibleFucknuckle
Dog Lover

Registered: 04/25/04
Posts: 6,762
Re: Is 35 minute PC sterilization sufficient? [Re: rizzle]
    #3048017 - 08/25/04 07:04 PM (18 years, 3 months ago)

No just put'em back in the PC

Just for the record I always Pc jars for 2 hours.
It may seem over kill but I never have bad jars.
And it makes good practice for when you try out whole grains


--------------------
What it is, is what it is my Brother.
It is as it is, so suffer thru it.


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OfflinePaintedDeath
The Bestest
Registered: 07/03/04
Posts: 243
Loc: somewhere in Texas
Last seen: 18 years, 2 months
Re: Is 35 minute PC sterilization sufficient? [Re: Fucknuckle]
    #3048197 - 08/25/04 07:58 PM (18 years, 3 months ago)

hah.

i PC for 45 minutes (start counting after the rocker starts rocking :headbanger: )
after the 45 minutes, i take a fork and stand back and lift up the rocker to let the pressure escape. take the jars out of the PC and set them on the counter, screw lids on tight and place them into box.

havent had a contam in 10 jars


--------------------
I wanna cross The Rainbow Bridge, and see my fathers in The Golden Hall. They beckon me, to join their feast. In my dreams, I hear their call.


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North Spore Shop: Bulk Substrate, Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies


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