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

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PCing at 7000ft
    #29724894 -

Hello,
I live at quite a high elevation (around 7000ft) and I’m curious how I should go about PCing grain. I heard something about increasing PSI but I’m not sure how to go about doing this. I’m also aware I should increase cooking times but everyone’s opinion on by how much is different. Any advice?


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Re: PCing at 7000ft [Re: flannt]
    #29724899 -

I’m also still trying to decide which PC I should get for this. I’m looking at the Tfal 22qt because it’s much cheaper but also the presto 23qt.


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Re: PCing at 7000ft [Re: flannt] * 3
    #29724907 -

You can either increase PSI or PC time.
Probably easier to increase time.
Increase the cooking time by 5% for every 1,000 feet above 2,000 feet elevation when using a pressure cooker.
At 7,000 feet, you should increase the cooking time by 25% compared to sea level.

 


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Re: PCing at 7000ft [Re: veggie] * 1
    #29724912 -

I can’t help but feel like this image is a bit inaccurate because for some reason the pressure at 8000ft is higher than 7000, and 7000=9000 on this


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Re: PCing at 7000ft [Re: veggie]
    #29724916 -

You can get a used 16 qt on fleabay or even C list, sometimes I see low usage 23qt prestos for 60 bucks, if I wanted to drive to Grass Valley or farther. They all look new or low usage compared to mine, but I want an electric one for the garage one of these days.  I'll keep my eyes open, maybe I find my new workhorse.

Nice chart Veggie, I'll let you know when I have to PC at Donner Summit.  :laugh:

Edited by MushLuvR77 (11/11/26 10:15 PM)

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Re: PCing at 7000ft [Re: MushLuvR77] * 2
    #29725183 -

Im at around 6k ft and i run 17psi.

For jars i do about 3hrs including vent time.
Agar around 30 min. 
Wood/soy bags about 4hrs.

Hope that helps.


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Re: PCing at 7000ft [Re: BeefExtreme]
    #29725288 -

How does one run 17psi on a 15psi cooker


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Re: PCing at 7000ft [Re: flannt] * 1
    #29725303 -

flannt said:
How does one run 17psi on a 15psi cooker


If you have a gauge along with a rocker weight, you add some weight. No, it won't explode. If you don't have a gauge, don't add weight (you really want to know what your pressure is), extend your time 25% (or more, can't be overkill with sterilization) like Veggie said.


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Re: PCing at 7000ft [Re: bluescreen]
    #29725329 -

Sry for excessive questions
How does one add weight


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Re: PCing at 7000ft [Re: flannt] * 2
    #29725337 -

I taped a couple quarters to my rocker. Other people use magnets that weigh a similar amount.


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Re: PCing at 7000ft [Re: PuffM4gicDr4gon]
    #29725356 -

sounds good :crazy2: thx for help yall


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Re: PCing at 7000ft [Re: flannt] * 3
    #29725405 -

flannt said:
sounds good :crazy2: thx for help yall


Magnets is easy and looks neat.



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Some fungi are only edible once.”
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Re: PCing at 7000ft [Re: Kloakk] * 2
    #29725480 -

I live at 7000 ft. as well. I put 2 quarters on the rocker and my PC gets up to 18psi (Presto 23Q)

I do 90 minutes for all my grain and have not had a single issue. Yes, I have seen the charts
about adjusting times and all that...but I ain't doing it. And it's been fine 100% of the time.


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Cultivating Panaeolus cyanescens


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Re: PCing at 7000ft [Re: flannt] * 1
    #29725657 -

flannt said:
How does one run 17psi on a 15psi cooker


https://www.shroomery.org/forums/showflat.php/Number/28742186

Lol


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Re: PCing at 7000ft [Re: Kloakk] * 1
    #29725692 -

Kloakk said:
flannt said:
sounds good :crazy2: thx for help yall


Magnets is easy and looks neat.





i never thought of this! So much better than coins and tape!


Also I live at a high altitude and my PC stays at 18psi with a silver dollar, nickel, and dime. I also don’t really have problems with my PC ever. It’s always my transfers/being impatient that ends up contaminated. 1:45-2 hours after venting and getting up to pressure and I have jars that are months old with no contamination that I never used, and haven’t cleaned out yet to do new grain.(Dont judge)


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Re: PCing at 7000ft [Re: JoeTherapist] * 1
    #29725890 -

I put a couple of washers under the plastic top of the presto weight.




My gauge still reads 15.5 PSI at 500ft above sea level

#don'ttrustthegauge

:wellthatsweird:


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

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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