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 The_breadsticks
Stranger
Registered: 09/23/16
Posts: 220
Last seen: 3 years, 7 months
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 Re: Mirro pressure cooker  [Re: bodhisatta]
#24036411 - 01/24/17 03:41 PM (7 years, 7 months ago) |
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Quote:
bodhisatta said:
Ouch. Bogus mirro get a presto
I don't think I can justify a new PC just for 1 more jar, I just bought this bitch! Didn't go with the presto 23 because the gauge thing is forign to me.
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 bodhisatta  
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Pretend it's not there. And it's the same thing
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The_breadsticks
Stranger
Registered: 09/23/16
Posts: 220
Last seen: 3 years, 7 months
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Re: Mirro pressure cooker [Re: bodhisatta]
#24036455 - 01/24/17 03:59 PM (7 years, 7 months ago) |
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Quote:
bodhisatta said:
Pretend it's not there. And it's the same thing
Oh right, they have weights still dont they?
Then I guess I went mirro because im a cheap ass and had only done 1 pf grow when I decided to go bulk. Totally wish I would have used the money I spent on a "hepa-type" filter for a shmuvbox box on a nicer PC.
Same with my poor man's pod. The tutorial section on here needs to be cleaned up! The day I built the PMP, I hopped on the forums for advice. Every piece of advice I could find was "build a shotty dumbfuck!"
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FREE TUMP
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bodhisatta
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Been trying to get it cleaned up for a long time
https://www.shroomery.org/forums/showflat.php/Number/24032739
Then this pops up. there's hope
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Grambo
Registered: 04/04/16
Posts: 212
Loc: Canaba 
Last seen: 3 years, 6 months
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Re: Mirro pressure cooker [Re: bodhisatta]
#24036635 - 01/24/17 05:06 PM (7 years, 7 months ago) |
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I was mistaken, I went and looked at the box, it is 22 qt, holds 7 +2 jars. I think once the red button pops up it is simply under pressure and you would still want to vent it as explained for 5 10 min's.
For instance, when I pour boiling water in the pot and twist the lid the button pops up due to pressure from the steam. I think you still want to wait to purge the air, no?
I had a loose valve on mine, under the basket looking trap device, middle of the lid, inside. Bad gasket too, just replaced it. The lid has become a little crabby at sealing without squeezing the handles together... the lid rocks slightly when loose. 8 months old or so, keep your receipt.
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bodhisatta
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Re: Mirro pressure cooker [Re: Grambo] 1
#24036666 - 01/24/17 05:18 PM (7 years, 7 months ago) |
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Gaskets last years if you do gasket maintenance keep it lubricated and stretched a bit now and then.
Also really clean and polish the PC especially in the lid mechanism
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Grambo
Registered: 04/04/16
Posts: 212
Loc: Canaba
Last seen: 3 years, 6 months
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Re: Mirro pressure cooker [Re: bodhisatta]
#24036700 - 01/24/17 05:35 PM (7 years, 7 months ago) |
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My gasket was flawed. Had a cut along the side from pinching and that caused it to deform... that is how the valve rattled loose. This was in the jiggler, not the main seal.
I pulled it apart and did maintenance on it, it isn't difficult, just inspect all valves for debris and tighten all parts. Careful on lubricating rubber, a lot of rubber will distort from oils over time, but yeah take care, don't store it with the lid cranked on for a year or you may loose crush on the main gasket.
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Loveshroomz777
Registered: 11/19/16
Posts: 616
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Re: Mirro pressure cooker [Re: Grambo]
#24036707 - 01/24/17 05:38 PM (7 years, 7 months ago) |
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deleted
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PEACE, LOVE AND PSYCHEDELICS
  
Edited by Loveshroomz777 (01/24/17 05:50 PM)
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LogicaL Chaos
Ascension Energy & Alien UFOs
Registered: 05/12/07
Posts: 70,788
Loc: The Inexpressible... 
Last seen: 19 hours, 19 minutes
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Quote:
Loveshroomz777 said:
Ok I got it just still don't know how to let it vent
I think I'm supposed to turn the heat on with the weight off let it vent for ten minutes then put the weight on but I'm unsure can someone please correct me if I'm wrong I don't want to fuck up
All venting is is getting the dry air out and replacing it with steam.
Once u see steam streaming out the top, put the weight on.
The jiggling of the weight tells that its stable at 15psi (or whatever weight u have). Adjust the heat on your burner if it jiggles too much or too little.
Also, one inch of water is not enough. U might run out of water before one hour is up. The water goes fast.
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Grambo
Registered: 04/04/16
Posts: 212
Loc: Canaba
Last seen: 3 years, 6 months
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Tighten them up I'd say, I always did. They should get sufficient GE if you have the holes in the lid, and less chance of contaminants getting in through another opening.
If I understand Chaos, you are saying that as long as the interior of the PC is water and steam there is no air to be purged? I thought the idea was to have the steam escaping for 10 min or so to give the steam a chance to expand into all pockets of the contents in the PC.
Don't mean to push this, just curious.
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Loveshroomz777
Registered: 11/19/16
Posts: 616
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Re: Mirro pressure cooker [Re: Grambo]
#24036834 - 01/24/17 06:10 PM (7 years, 7 months ago) |
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I think I'm going to put a inch and a half then what do you think
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PEACE, LOVE AND PSYCHEDELICS
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bodhisatta
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Once you see steam come out the top that's when u start venting countdown. The weight doesn't go on as soon as steam comes out
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Grambo
Registered: 04/04/16
Posts: 212
Loc: Canaba
Last seen: 3 years, 6 months
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Re: Mirro pressure cooker [Re: bodhisatta]
#24036877 - 01/24/17 06:23 PM (7 years, 7 months ago) |
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That is what I thought Bod, just wanted to clarify, thank you again.
1.5 inches should be fine in the 22qt. That would be close to the level of the bottom canning rack, or plate as I earlier referred. You want to keep enough water in there that it doesn't boil dry and not so much that it may boil up and into anything you don't want water getting into.
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bodhisatta
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Re: Mirro pressure cooker [Re: Grambo]
#24036923 - 01/24/17 06:40 PM (7 years, 7 months ago) |
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Just to reiterate.
Steam needs to be forming a jet out of the top then you start the time countdown for venting. Then weight goes on. Venting time shouldn't start with just the sputtering of condensation spitting out of the top. You want steam coming out
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Loveshroomz777
Registered: 11/19/16
Posts: 616
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Re: Mirro pressure cooker [Re: bodhisatta]
#24036952 - 01/24/17 06:47 PM (7 years, 7 months ago) |
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You are awesome bodhisatta thanks for taking the time and blessing us with your knowledge
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PEACE, LOVE AND PSYCHEDELICS
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The_breadsticks
Stranger
Registered: 09/23/16
Posts: 220
Last seen: 3 years, 7 months
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Re: Mirro pressure cooker [Re: Grambo]
#24038081 - 01/25/17 08:59 AM (7 years, 7 months ago) |
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Quote:
Grambo said:
I was mistaken, I went and looked at the box, it is 22 qt, holds 7 +2 jars. I think once the red button pops up it is simply under pressure and you would still want to vent it as explained for 5 10 min's.
For instance, when I pour boiling water in the pot and twist the lid the button pops up due to pressure from the steam. I think you still want to wait to purge the air, no?
I had a loose valve on mine, under the basket looking trap device, middle of the lid, inside. Bad gasket too, just replaced it. The lid has become a little crabby at sealing without squeezing the handles together... the lid rocks slightly when loose. 8 months old or so, keep your receipt.
My red button doesn't pop until it's been venting for quite some time.
Even if you didn't vent, wouldn't it naturally vent when the weight pops a few times?
As far as the boiling water.. when you do that, does the red button actually stay up? I recommend against doing that actually. I believe if the jars heat up too quick they can crack! I always turn my stove on 50% for 10 mins before I crank it up.
Am I wasting time?!
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FREE TUMP
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bodhisatta
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Jars will crack if they cool down to quickly
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Grambo
Registered: 04/04/16
Posts: 212
Loc: Canaba
Last seen: 3 years, 6 months
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Re: Mirro pressure cooker [Re: bodhisatta]
#24038556 - 01/25/17 12:34 PM (7 years, 7 months ago) |
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Ya man.
I never cracked a jar yet.
I pissed around with mine last night to find the right level on my dials for a new element. The steam does take a long time to build in my 22qt. I pour my kettle in (1.7 liters) to begin with hot water, cuts down your waiting time.
Venting is different than letting it push out air as she goes through the sterilizing time. The science behind it is to replace atmospheric air with moisture laden air... steam. I am still learning thanks to bodhisatta, I am a red seal millwright and though I have dealt with thermal expansion in various metals I never did deal with atmosphere.
Atmospheric pressure = 14.7 = 1 bar
PC @ 15 PSI = 103 kPa = 1 bar
We are doubling the pressure at sea level and there are charts for altitude adjustments. Still wrapping my head around it but I have read this for a long time...
ANYHOW, I am going to practice venting from now on.
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bodhisatta
Smurf real estate agent
Registered: 04/30/13
Posts: 61,901
Loc: Milky way
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Re: Mirro pressure cooker [Re: Grambo]
#24038836 - 01/25/17 02:40 PM (7 years, 7 months ago) |
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Psi and psi gauge.
One takes into account the pressure on earth one considers the pressure on earth as the 0 point
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Grambo
Registered: 04/04/16
Posts: 212
Loc: Canaba
Last seen: 3 years, 6 months
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Re: Mirro pressure cooker [Re: bodhisatta]
#24038939 - 01/25/17 03:20 PM (7 years, 7 months ago) |
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The converse is pounds per square inch gauge or pounds per square inch gage (psig), indicating that the pressure is relative to atmospheric pressure. For example, a bicycle tire pumped up to 65 psi above local atmospheric pressure (say, 14.7 psia locally), will have a pressure of 65 + 14.7 = 79.7 psia or 65 psig.
The way temperature/pressure works they can only guarantee the canner will be at the correct temperature if all the pressure inside is due to water vapour. Venting means that the steam has pushed all the air out. The pressure is simply a way to achieve the temperature. If there is air still in the vessel then the temperature will actually be lower than the pressure would indicate. It has to do with a scientific principle called “partial pressure”.
I understand, sorry if I steered this a little off track... oh well, ALL ABOARD HAHAHAHAHA!
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