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BIGGS22
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Registered: 07/28/16
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How long do I pressure cook for with an 11psi pressure cooker?
#23487633 - 07/28/16 10:14 PM (7 years, 6 months ago) |
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So I just bought a new pressure cooker and it only goes up to 11 psi. All the guides say the pressure cooker needs to be at 15 psi for 60-90 mins or more at a lower psi, but they never specify how much more for lower psis. Can the spawn jars even be sterilized at 11 psi?
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spacechildo
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: BIGGS22]
#23487689 - 07/28/16 10:28 PM (7 years, 6 months ago) |
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do 2,5hrs and be safe. 90mins minimum @ 15 psi.
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BIGGS22
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: BIGGS22]
#23487690 - 07/28/16 10:28 PM (7 years, 6 months ago) |
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I mean for WBS if that makes a difference.
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Boogieman47
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: BIGGS22]
#23488043 - 07/29/16 01:51 AM (7 years, 5 months ago) |
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I've read a post somewhere of RR and someone else talking about sterilization starts at 10 or 11 psi I can't remember which one but I do 2 hours at 15 with whole oats if you do wbs at 11 for 2.5 like space said you'll be good do like two jars and see how they come out if they look good then run with it if not adjust your time
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d0urd3n
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Registered: 09/15/10
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23488065 - 07/29/16 02:16 AM (7 years, 5 months ago) |
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There is a chart somewhere for the proper times. I forget who has/had it in their sig. Then you will have less guess work. But honestly if this is going to be a halfways regular thing of yours, just get a proper PC.
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spacechildo
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23488067 - 07/29/16 02:17 AM (7 years, 5 months ago) |
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Quote:
noob47 said: I've read a post somewhere of RR and someone else talking about sterilization starts at 10 or 11 psi I can't remember which one but I do 2 hours at 15 with whole oats if you do wbs at 11 for 2.5 like space said you'll be good do like two jars and see how they come out if they look good then run with it if not adjust your time
seriously doubt it, or you misinterpreted it. RR and most other farms dont use a PC to sterilize grains just normal pressure and 8hr steaming.
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Bunya

Registered: 06/04/16
Posts: 601
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: spacechildo]
#23488080 - 07/29/16 02:25 AM (7 years, 5 months ago) |
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Is it branded Spinal Tap? Cause 11 could be 16.
-------------------- Bunya cones kill.
Edited by Bunya (07/29/16 02:32 AM)
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weetsie
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Bunya]
#23488110 - 07/29/16 02:41 AM (7 years, 5 months ago) |
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Why not just make 10 psi hotter?
-------------------- Active grow logs: Oysters on Straw Pellets Trade list
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Bunya


Registered: 06/04/16
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: weetsie]
#23488118 - 07/29/16 02:44 AM (7 years, 5 months ago) |
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Cause 11 is more
-------------------- Bunya cones kill.
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weetsie
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Bunya] 1
#23488126 - 07/29/16 02:50 AM (7 years, 5 months ago) |
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Quote:
Bunya said: Cause 11 is more
-------------------- Active grow logs: Oysters on Straw Pellets Trade list
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Psilosoulful

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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: weetsie]
#23488144 - 07/29/16 03:01 AM (7 years, 5 months ago) |
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tump
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Psilosoulful]
#23488193 - 07/29/16 03:57 AM (7 years, 5 months ago) |
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Make three hours if you want safe. But be simple run four pressure cookers at same time that way its worth your while.
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Mad Season
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: d0urd3n]
#23488241 - 07/29/16 04:45 AM (7 years, 5 months ago) |
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Quote:
d0urd3n said: There is a chart somewhere for the proper times. I forget who has/had it in their sig. Then you will have less guess work. But honestly if this is going to be a halfways regular thing of yours, just get a proper PC.
I've seen that chart.. they make it a linear chart, when clearly it should be a parabola. Saying it takes 20 minutes or some shit at 25+ psi, clearly a lie.
My old PC wouldn't go past 8 psi, and I always did wbs for 2.5 hours. I had very little issues growing.
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tump
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Mad Season]
#23488273 - 07/29/16 05:10 AM (7 years, 5 months ago) |
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Why not make it 250psi where water boils at400 f degrees where it take 3 mins a bacth. Two hours you have two much spawn
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Mad Season
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: tump]
#23488282 - 07/29/16 05:18 AM (7 years, 5 months ago) |
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Because my safety plug pops at 20-25 psi lol
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Boogieman47
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: spacechildo]
#23489170 - 07/29/16 12:26 PM (7 years, 5 months ago) |
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Quote:
spacechildo said:
Quote:
noob47 said: I've read a post somewhere of RR and someone else talking about sterilization starts at 10 or 11 psi I can't remember which one but I do 2 hours at 15 with whole oats if you do wbs at 11 for 2.5 like space said you'll be good do like two jars and see how they come out if they look good then run with it if not adjust your time
seriously doubt it, or you misinterpreted it. RR and most other farms dont use a PC to sterilize grains just normal pressure and 8hr steaming.
Space I never said he used it I read on this site that he had said that here is a quote it's not the one I saw originally butQuote:
RogerRabbit said: The wax paper simply helps to hold in moisture, and also create a humid microenvironment where the pins and fruits form. I prefer rye berries over any other spawn.
I save my coffee grinds from the coffee pot every morning in a bin. When I make up substrate, I use horse manure, 25% or so coffee grinds, five to ten percent gypsum, and hydrated lime at the rate of 1 teaspoon per cup of combined manure/coffee. I also add about 1/2 teaspoon per cup of blood meal. Pasteurize and use.
10 psi will be fine to sterilize grains. Just go two hours. RR
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spacechildo
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23489223 - 07/29/16 12:46 PM (7 years, 5 months ago) |
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he says 10psi is fine, not that sterilization starts at 10psi. so misinterpretation?
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bodhisatta 
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Registered: 04/30/13
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: tump]
#23489278 - 07/29/16 01:12 PM (7 years, 5 months ago) |
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Quote:
tump said: Why not make it 250psi where water boils at400 f degrees where it take 3 mins a bacth. Two hours you have two much spawn
And your grain will be burnt to shit
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Boogieman47
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: spacechildo]
#23489290 - 07/29/16 01:17 PM (7 years, 5 months ago) |
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You're right space because sterilization can be achieved at 1 psi with enough time right ?
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bodhisatta 
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23489293 - 07/29/16 01:20 PM (7 years, 5 months ago) |
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Correct. It just takes an awful long time in comparison
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Boogieman47
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: bodhisatta]
#23489427 - 07/29/16 02:08 PM (7 years, 5 months ago) |
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Ya it was a few months back when I read it it must have got lost in translation in my brain haha sorry for the bad info op
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BIGGS22
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23489958 - 07/29/16 05:38 PM (7 years, 5 months ago) |
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Thanks all the advice everyone. I've got a question about using the cooker though.
Reading the instructions on my pressure cooker, it says the safety valve releases pressure once the cooker reaches 11 psi. When this happens, it says you're supposed to reduce the heat. If that's the case, how can I keep the psi at a constant 11 psi for 2 and a half hours?
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bodhisatta 
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: BIGGS22]
#23489976 - 07/29/16 05:46 PM (7 years, 5 months ago) |
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keep it where it just slightly hisses out. on my stove with my PC it's usually a hair under 2 on the dial but who knows what yours will be
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BIGGS22
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: bodhisatta]
#23489996 - 07/29/16 05:54 PM (7 years, 5 months ago) |
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Quote:
Trusted Cultivator said: keep it where it just slightly hisses out. on my stove with my PC it's usually a hair under 2 on the dial but who knows what yours will be
How do I keep all the water from evaporating? Or is the steam so light that it won't evaporate all of it in 2.5 hours?
Edited by BIGGS22 (07/29/16 06:01 PM)
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Boogieman47
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: BIGGS22]
#23490034 - 07/29/16 06:12 PM (7 years, 5 months ago) |
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Fill the water just under half way up the jars
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Eywa_devotee
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23490231 - 07/29/16 07:41 PM (7 years, 5 months ago) |
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Fill with water between 1/3 and 1/2 the height of the jars you intend to use. Once you are at pressure, very little heat is required to maintain the temperature, just enough to compensate for the radiative cooling.
Much more and you loose a lot of heat as steam. I go for 1 hour 30 minutes once at 15 PSI and have no problems at all. If you are using at 11 PSI you will want to up the cooking time to at least 2 hours, but 2 and a half would be better if you can stand the wait and tend the cooker.
-------------------- "Love one another." "To Love is to know me." "Love is the Law, Love under Will." "In Compassion, all sorrows end." Regardless of the Master, the message is the same- Choose love and you shall live, Choose Fear and you shall die. Help bring peace to this Earth: Love one another, and serve others before yourself.
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bodhisatta 
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Eywa_devotee]
#23490238 - 07/29/16 07:44 PM (7 years, 5 months ago) |
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you should be losing very little water like a cup or two over 2 hours
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spacechildo
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: bodhisatta]
#23490259 - 07/29/16 07:48 PM (7 years, 5 months ago) |
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all my jars are completely out of the water during PC, like bodhi said you barely lose any water at all.
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Inocuole
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23490270 - 07/29/16 07:54 PM (7 years, 5 months ago) |
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Quote:
noob47 said: Fill the water just under half way up the jars
Uh, no.
Like, an inch or two up the jars is all that's necessary. Hell, like an inch or two, total, is enough. I barely lose any water at all when I pressure cook correctly. I usually fill the water just barely over the top of the trivet, then when I look after, there's still water over the top of the trivet. 
By all means though, use more, because that's better than running dry, but it will affect the efficiency of your run by quite a bit. Steam is easier to pressurize than liquid water.
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Boogieman47
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Inocuole]
#23490282 - 07/29/16 07:57 PM (7 years, 5 months ago) |
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With all 10 quarts out it is only about two or three inches of water in my 23 qt presto
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tump
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: Boogieman47]
#23490497 - 07/29/16 09:25 PM (7 years, 5 months ago) |
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But more cost effective at one psi cooking 30 gallons of grains in 24 hours vs 2 hours for 7 quarts.
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azur
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: BIGGS22]
#23490549 - 07/29/16 09:46 PM (7 years, 5 months ago) |
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Real research will achieve better results. Use these strips and do a few dud runs. Keep records. Then YOU will know about YOUR pressure cooker.
http://www.fungi.com/product-detail/product/sterilization-indicator-strips-box-of-250.html
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bodhisatta 
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Re: How long do I pressure cook for with an 11psi pressure cooker? [Re: azur]
#23491682 - 07/30/16 07:43 AM (7 years, 5 months ago) |
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If those are strips that change at 15psi 121C they'll never change color in a PC that goes to 11psi and not hot enough to change the strips color.
Those strips indicate temperature for sterilization has been met but not that sterilization is complete
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