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polko
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK [Re: bodhisatta]
#26818798 - 07/12/20 06:55 AM (3 years, 6 months ago) |
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Great tips! thanks!
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CrashTest
Stay Learning


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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: polko]
#26846871 - 07/26/20 08:59 PM (3 years, 5 months ago) |
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Subbed for when my presto arrives
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this account is automated, any posts related to activities or advice thereof are strictly opinions from numerous online sites and are for informational purposes only - CrashTest2020
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Kiloecho
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: enzofilo]
#26847286 - 07/27/20 07:39 AM (3 years, 5 months ago) |
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That there looks like a Bundt pan to make a Bundt cake. It's a European type of cake with a hole in the center (maybe so it bakes faster or more evenly?
https://www.thekitchn.com/how-to-bundt-cake-recipe-23005020
How did it go using that pan in your PC?
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MadHatter333
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: Kiloecho]
#26855659 - 07/31/20 02:53 PM (3 years, 5 months ago) |
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I need help ASAP. My PC isn’t blowing steam from the valve and I’m wondering if it’s okay to run it still? I’ve never had it not blow out before but when I put the shake weight on it still builds pressure. Please help ASAP
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TheBoJim
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: MadHatter333]
#26855722 - 07/31/20 03:27 PM (3 years, 5 months ago) |
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You’re talking about a presto 23? Is the valve clean?
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MadHatter333
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: TheBoJim]
#26855724 - 07/31/20 03:28 PM (3 years, 5 months ago) |
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Yes, and yes
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MtnLobo
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: MadHatter333]
#26864056 - 08/05/20 08:54 AM (3 years, 5 months ago) |
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So, you vent for 10 minutes with no pressure relief cap on the cooker? Just steam escaping from the hole where the pressure relief cap goes (the same cap that you weight with the quarters)...it seems like you would lose a lot of water during those 10 minutes...perhaps adjust the cap to 5 psi or 10 psi for the 10 minutes to retain some more water? I am trying to understand, not trying to educate.
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Pantomath
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: MtnLobo] 2
#26877808 - 08/13/20 02:00 AM (3 years, 5 months ago) |
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YES, leave the weighted gauge(pressure relief cap) "OFF".
"10-minutes-venting process" by Pantomath
-Just fasten the pressure cooker lid securely. -Leave the weight cap/petcock off the vent pipe. -Turn the heat setting to high. -Heat until the water starts to boils and steam flows freely in a funnel-shape from the open vent pipe. -Let the steam flow continuously for 10 minutes. -At this point place the weight cap/petcock on the vent pipe. The pressure-cooker will start to pressurize( reaching up to 15psi) in 3 to 10 minutes -At that point, lower heat to medium high, then wait as long as your recipe requires ;-D
-And NO, You will not loose much water by doing this, don't stress it, but if you do, just add a little extra water to the pot beforehand.
Another good advice to you is, if you worried about loosing water content, is to NEVER ever-ever-ever release the steam(unplugging the petcock) right after the cooking/canning is complete. Let the pressure cooker sit for a hour or two with the weight cap "ON". This will prevent excess water from escaping your jars in the form of steam, it will also prevents unwanted lid deformations and unwanted outside gases from racing back inside your jars from the rapid-change of pressure and temperature, which would otherwise happen if you released the pressure too soon. Don't be a too-soon-junior-kind-of-guy, be patient :-D , it will pay-off.
Lastly, for the "impatient-junior ones", rinsing sink-water over the pressure cooker(with the petcock "ON") after you remove it from the fire will speed the process of conversion of steam back into water within the pressure cooker, therefore the pressure will dissipate-away very quickly. The problem with this is, you will still loose some crucial moisture that would otherwise cool back into water inside the pot, and the rapid-cooling from introducing the jars to the outside-environment(outside of the pressure cooker) will race unwanted gases back into your jar, so y'all better-off letting the pressure cooker sit and cool-off over the next couple of hours.
Think about all the jars you have opened from the supermarket, there's always a negative pressure or suction inside the jar, that's due to this rapid-cooling effect. Its great for canning purposes to prevent any air going inside the jars(and spoiling it), but not so great for brf/lc/grain tek's, because our jars leaks air from the seams, the upside-down lids, the holes in lids, breathing-tapes and band-aids, aluminum foils, you get my point. Never rapidly-cool unless your canning you tomatoes and pickles. Alright everyone, Wax-on wax-off, and if have any questions, I got you, we got you, and I hope one day you got someone else. Much Love, Pantomath, your all around Guru.
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1995sportster883
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: Pantomath]
#27092438 - 12/16/20 03:49 PM (3 years, 1 month ago) |
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How much water in a 16 quart presto?
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bodhisatta 
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: 1995sportster883]
#27092447 - 12/16/20 03:53 PM (3 years, 1 month ago) |
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They have the user manual as a pdf on the presto website
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1995sportster883
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: bodhisatta]
#27092457 - 12/16/20 03:59 PM (3 years, 1 month ago) |
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Ok thanks, sorry. I didn't know if there was a specific amount for this application.
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searchwithin
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: 1995sportster883]
#27115074 - 12/29/20 10:01 PM (3 years, 29 days ago) |
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I did this exactly but I didn't leave the lid loose until it boiled then sealed it...I had it sealed from the beginning but I did vent for 11min st8...am i screwed?
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thecja
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: searchwithin] 1
#27142084 - 01/11/21 01:53 PM (3 years, 16 days ago) |
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Thank you! This was super helpful!
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icpurple
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Re: Bod's Easy AF how to use your pressure cooker for mycology TEK [Re: thecja]
#27147630 - 01/14/21 12:12 PM (3 years, 13 days ago) |
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Good thread and good info.
I do slightly differently with the ramping up of temps though.
I set the heat at '6' where it shall sit for the whole time. The reason for this is it provides a slower ramp up of temperature inside the PC. Why? Maybe it isn't so important for lids with vents but I PC the grains with a fully intact lid and basically pressure can them and leave them set on the shelf until I am ready for them then innoc in a SAB and apply a sterilized, vented lid at that time. If the jars are processed properly they should last months on the shelf. This way I can see if they contam because of my processing the grain. In this case, the slow ramp up of temperature; around 30 minutes before steam starts to appear out the vent, then vent for 15-20 minutes, then it's usually around 20 minutes once the jiggler is put on before it starts to jiggle. The only way air inside the jars will get out in my method is by heating the contents of the jar enough to evolve steam, which pushes the air out. If the heat is cranked and the PC is locked with a heavy weight and pressured up quickly, the pressure outside the jars will be greater and the jars won't vent the air. Also, the jiggler jiggling releases what is inside the PC, which may or may not be a mixture of air and steam, this will, over time, increase the steam to air ratio inside the PC to your advantage. Something you may have noticed after the PC is up to pressure and jiggler is jiggling, the frequency of the jiggles increases and you can turn down the burner a bit to lower the frequency... The reason for this change in frequency is the contents of the jars has equalized to the PC and the heat coming into the PC from the burner is no longer being absorbed by the jars, or at least to a much lesser extent. This also means that the jars were probably venting air up to that time and may even more yet, another reason not to lock up the vent completely.
This is a pic of my original mod of a little Fresco pressure cooker that I modded over 10 years ago by wrapping wire around the pear shaped weight. That baby holds 4 Quart jars! Hahaha. I sold my 941 cause that sumbitch bent my stove when it was full with 19 Litre/quart jars of chili!

You may have seen it if you watched a youtube video titled "can you use a pressure cooker as a pressure canner" I deleted that YT account over a year ago so it shouldn't be available anymore.
This is another pic of how I've modded my presto and Mirro pressure cookers:

The Presto, with a washer that has been drilled and shaped to fit under the plastic cap that screws onto the metal weight - weighing 12 grams and the Mirro, with the cylindrical weight - I have placed 2 deck screws through the 'bottom holes' and wrapped wire around them to equal 15.3 grams, this brings the temperature to near the same temperature of the Presto with the 12 Grams of extra weight.
Now, I do have to say, NEVER OPERATE YOUR PRESSURE COOKER OR CANNER IN A MANNER NOT INTENDED BY THE MANUFACTURER; DOING SO COULD RESULT IN SERIOUS PERSONAL INJURY OR DEATH. *edit; I only read the first 4 and half of the 5th page so sorry if these ideas have already been covered.
Edited by icpurple (01/15/21 07:24 PM)
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vaudvilleviktor
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK [Re: bodhisatta]
#27152099 - 01/16/21 08:04 PM (3 years, 11 days ago) |
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Quote:
This TEK will cover the use of pressure cooker/canners that use a jiggle type weight on top. Sterilizers use a toggle valve to release over-pressure. AA canners can be turned into sterilizers by replacing the jiggle weight with a toggle.(click for example)
does the presto 23 qt PC come with the weight? amazon questions seems to say it doesn't. and is the jiggle weight replacement required for this tek? thanks
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bodhisatta 
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK [Re: vaudvilleviktor]
#27152115 - 01/16/21 08:24 PM (3 years, 11 days ago) |
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Of course it does. Unless it's used or something
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savan73
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK *DELETED* [Re: bodhisatta]
#27168675 - 01/25/21 08:59 AM (3 years, 2 days ago) |
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Post deleted by savan73
Reason for deletion: .
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ModularMind
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK [Re: savan73]
#27168690 - 01/25/21 09:10 AM (3 years, 2 days ago) |
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Quote:
savan73 said: This is brand new Presto. It doesn't look good. Does it cause problems?

I don’t think it would compromise the seal.
Are you worried about it structurally?
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bodhisatta 
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK [Re: ModularMind]
#27168712 - 01/25/21 09:24 AM (3 years, 2 days ago) |
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That's what cast aluminum looks like. That's the edge where it doesn't need finishing
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vaudvilleviktor
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Re: BOD's Easy AF how to use your pressure cooker for mycology TEK [Re: bodhisatta]
#27188197 - 02/05/21 03:18 PM (2 years, 11 months ago) |
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Just got a 23 Qt Presto, using it for the first time.
During the initial heat up / vent- there is a lot of steam and water sputtering out of the air vent/ cover lock thing. There is steam coming out of the vent pipe as well.. but more coming out of the air vent/ cover lock thing. Is that normal or sign of a problem?
Edited by vaudvilleviktor (02/05/21 03:19 PM)
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