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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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Pressure cooker
    #29069971 -

Hello guys! Looking for good quality pressure cooker. Any advice?

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Re: Pressure cooker [Re: Suckduckgo]
    #29069973 -



I have bought this one and dont sure if it will work

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Re: Pressure cooker [Re: Suckduckgo]
    #29069991 -

You'll want to read the manual to see what psi it gets up to. 15psi is the standard, but you can get away with 11-14 psi if you greatly increase the cook time. I have a 23 qt one that goes up to 17.5 psi and an all in one cooker like you have that runs at 11 psi. I run my 17.5 one for 1.5-2 hrs, but I do 4 hours in my 11psi one.


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I've got skills, they don't know where to use me
I'm like the best dressed guy at the nude beach
Nice to meet you!

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Re: Pressure cooker [Re: PuffM4gicDr4gon]
    #29069995 -

:whathesaid:

That would be fine for agar but not recommended for grain.


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:crankbowcloud:

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Re: Pressure cooker [Re: Saxifrage]
    #29070000 -

Saxifrage said:
:whathesaid:

That would be fine for agar but not recommended for grain.


I love my all in one for a quick batch of agar. I have used it successfully for grain though. I just use 500ml jars and only fill them up halfway.

A 23 quart PC is vastly superior though.


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I've got skills, they don't know where to use me
I'm like the best dressed guy at the nude beach
Nice to meet you!

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Re: Pressure cooker [Re: Suckduckgo]
    #29070012 -

What will you be using it for?

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Re: Pressure cooker [Re: The Tao]
    #29070031 -

For grain sterilisation

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Re: Pressure cooker [Re: PuffM4gicDr4gon]
    #29070034 -

Yeah it has 15psi but do temprichare has difeference ?

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Re: Pressure cooker [Re: Suckduckgo]
    #29070049 -

Suckduckgo said:
Yeah it has 15psi but do temprichare has difeference ?


The psi is what raises the maximum boiling temperature for water to 250f (121c).

This will work as long as you can fit some jars into it.

Make sure your grains are properly hydrated before pressure cooking. All the pressure and time in the world won't save you if your grains are under hydrated.

This is a post with good examples of what you're looking for:

https://www.shroomery.org/forums/showflat.php/Number/29045187#29045187


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I've got skills, they don't know where to use me
I'm like the best dressed guy at the nude beach
Nice to meet you!

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Re: Pressure cooker [Re: PuffM4gicDr4gon]
    #29070230 -

This is my baby, Presto Pressure Canner with weighted regulator.

I've honestly thought it was 23 qt, but apparently it's 16. Mine fits 7 1/2-pt wide mouth jars nicely, and if you double-deck with some sort of scaffold, you can double that, though I haven't done that.

Why I love it is because once you learn to use the jiggler, you don't have to mess with a gauge at all. To me, the simpler the better.

Simple steps are:
1) Check your components (ensure that the top hole is patent, the pressure release valve is not stuck, everything moves and locks properly)
2) Put 1.5-2 in of water at bottom, load whatever you're canning according to instructions, lock the lid in place properly. Do not put on the weighted gauges yet.
3) Put the heat on high, let it steam for a few minutes until you see the pressure release valve pop up. That's when you know it's at the sweet spot.
4) Place the weighted gauge on. Look at your altitude and specific project instructions for requirements, but usually food at sealevel is ~11 lbs pressure, while higher sterility requirements (i.e. mycology) you will just use both weights to reach ~15 lbs pressure. Be careful not to burn yourself when popping the regulator/weights on.
5) Now watch for the weights to begin rocking/jiggling. You do not want a violent jiggle, so when you see that, reduce the heat slightly to med-high until you get a gentle steady jiggle.
6) Set your timer at this point and sterilize according to your project's requirements.
7) At time's up, simply turn off the heat and walk away. Let it cool overnight. Don't be hasty or impatient, and do NOT attempt to open the lid until long after the release valve has gone back down.

Voila! No worrying about numbers once you get the hang of it. Feed your family and your mind in one handy device. :smile:

Good luck!


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Sometimes when you stare into the void...it looks cool AF.

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Re: Pressure cooker [Re: SoPsilly]
    #29070542 -

if you're doing more than pftek you need a PC. The 23 is ideal, but if you want to work smaller, use pint jars and the pint pc that presto has. half the price and might be the scale you want


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Laminar Breeze

Filter: 24x24x5.875 Koch
Pre: Dupont Ultimate 9600 14x20x1
Blower: 1TDT2

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Re: Pressure cooker [Re: Suckduckgo]
    #29070545 -

Suckduckgo said:


I have bought this one and dont sure if it will work


No

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Re: Pressure cooker [Re: Stipe-n Cap] * 1
    #29070715 -

3.5) Vent your PC for 10 minutes before applying weight to canner.


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Agar Plates and Removing Hidden Contaminants - A Visual Notebook
Recognizing Contamination in Grain Jars - A Visual Notebook
Contaminated Condiment Cup Cleanup v1.0

Green Cap Pheno Isolation
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Re: Pressure cooker [Re: Suckduckgo]
    #29071389 -

I'd just refer to Bod's Pressure cooker tek. Tinfoil is not required

https://www.shroomery.org/forums/showflat.php/Number/24180711/vc/1#24180711

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Re: Pressure cooker [Re: LuvPuf]
    #29071462 -

I use my IP Pro for prepping agar, LC and grains without issues.
I just adjust the time of the cycle.
8Qt Instant Pot FTW


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The Hitchhikers Guide
Milkboy's French Press Tek
AIO Rescue Thread
Everything about Agar and it's uses
Guide to Surface Conditions


       
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Re: Pressure cooker [Re: meta_mmxxii]
    #29071504 -

Would the 8qt Insta Pot Duo also be okay for grains? What run time do you use?


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Re: Pressure cooker [Re: bluespirit13] * 2
    #29071557 -

Instant pots suck for anything other than liquids.

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Re: Pressure cooker [Re: Stipe-n Cap]
    #29071593 -

So this should be treated as outdated/ inaccurate information?

https://www.shroomery.org/forums/showflat.php/Number/27090797/fpart/1/vc/1


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Re: Pressure cooker [Re: bluespirit13] * 3
    #29071620 -

I'm not reading that entire thread to figure it out. Agar, LC, PF tek, shit like that is great in an electric kitchen pressure cooker. Notice that it's simply a pressure cooker and not a canner. Electric pressure cookers are designed to cook foods with liquids, not to sterilize...even if it has a sterilize function. They're not designed to sterilize anything, so they're not all that reliable.

Think of it like this: You can sterilize grain jars in a canning pot with a trivet at atmospheric pressure, but it's super inefficient and unreliable.



Electric cookers are one step above that, and many steps below a proper pressure canner like a Presto with a jiggle weight and guage. A Presto is a step below a benchtop sterilizer/autoclave like the All-American.

There's a hierarchy. From least effective to most:

1. Atmospheric steamer: not suited for spawn jars or bags, but works great for PF tek, supplemented sawdust blocks and peat casing or anything that requires pasteurization;

2. Electric kitchen pressure cooker:
  Great for liquids, PF tek, terrible for blocks, not great for spawn jars, terrible for spawn bags;

3. A pressure canner with a weight but
without a guage: Works well for spawn jars and liquids, may work ok for blocks if large enough to fit, should work for small volume spawn bags;

4. A pressure canner with a guage: Works well for everything;

5. A benchtop sterilizer unit like the
All-American: Larger units are best suited for spawn bags and supplemented sawdust blocks;

6. All other large internal volume autoclaves: The same as #5 but at commercial scale.


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Re: Pressure cooker [Re: Stipe-n Cap] * 1
    #29071695 -

Stipe-n Cap said:
Instant pots suck for anything other than liquids.


you mean they're awkward, or small or...cuz I saw a youtube video by this Stipe n Cap guy :shrug:

edit: just saw above post. inefficient and unreliable, ok got it


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Learn it, know it, live it


Edited by Mackload (12/29/24 08:54 PM)

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