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

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Invisiblemaxmush
Always learning...

Registered: 06/13/20
Posts: 440
Autoclave sub pasturiztion
    #26969252 - 10/04/20 02:39 PM (3 years, 3 months ago)

Hello All,

We have access to a custom built autoclave that is over 1000l. How would one use this to pasteurize substrate? psi is variable 15-30psi. My first assumption is to use 15psi and let the internal temp reach 145 degrees shut off and let the residual heat take it up to 161 and then drop naturally. About 120min total including warm up time of 30min and temp drop 30min. I still think this may too much.

Anyone have input?

Many thanks!


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Offlineverum subsequentis
seeker of truth
I'm a teapot User Gallery


Registered: 03/22/16
Posts: 8,732
Last seen: 1 year, 7 months
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Re: Autoclave sub pasturiztion [Re: maxmush]
    #26969507 - 10/04/20 05:15 PM (3 years, 3 months ago)

Any way of maintaining pasteurization temps for an hour will do. How are you going to monitor the internal temp while at pressure? I'm sure you are aware but any amount of pressure means you're well above pasteurization temps. What are you trying to pasteurize anyway? I'd use that sucker to sterilize a bunch of grain and stick with coir for the sub.


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OfflineForresterM
aspiring sociopath
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Registered: 02/05/13
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Re: Autoclave sub pasturiztion [Re: maxmush]
    #26969525 - 10/04/20 05:27 PM (3 years, 3 months ago)

Quote:

maxmush said:
My first assumption is to use 15psi and let the internal temp reach 145 degrees




If you let the internal temp reach 145F, the outside of it has been well over 210F for quite some time, as mentioned.  Agreed, not a good idea.


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


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