Home | Community | Message Board


This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: Kraken Kratom Red Vein Kratom   Bridgetown Botanicals Bridgetown Botanicals   PhytoExtractum Kratom Powder for Sale   Original Sensible Seeds Bulk Cannabis Seeds   North Spore Cultivation Supplies

Jump to first unread post Pages: 1 | 2 | 3 | 4  [ show all ]
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Mirro pressure cooker
    #24036169 - 01/24/17 02:16 PM (7 years, 6 days ago)

So I read that I am supposed to let the PC vent for ten minutes or so before putting the weight on, what is the weight is it the thing that rattles? Can someone please help me out I don't understand this step thanks guys peace


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
OfflineFunGuyZ
Psilly Rabbit


Registered: 12/13/16
Posts: 177
Loc: down the rabbit hole
Last seen: 4 years, 9 months
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036177 - 01/24/17 02:19 PM (7 years, 6 days ago)

Yes the weight is what rattles. There is a vent to the side that will eventually close once it becomes pressurized. At that point put the weight on.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036181 - 01/24/17 02:20 PM (7 years, 6 days ago)

Ok so I just found out that the thing that rocks is the weight now my question is when I turn the heat on high and the pressure is building up do I have the weight on at this time or do I put it on once the pressure builds up to 15 psi. By pasteurized do you mean it reached 15 psi


--------------------
PEACE, LOVE AND PSYCHEDELICS



Edited by Loveshroomz777 (01/24/17 02:21 PM)


Extras: Filter Print Post Top
OfflineFunGuyZ
Psilly Rabbit


Registered: 12/13/16
Posts: 177
Loc: down the rabbit hole
Last seen: 4 years, 9 months
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036189 - 01/24/17 02:23 PM (7 years, 6 days ago)

Without the weight it won't build up to 15psi- that is what it is for. Just put it on before you turn the heat on.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: FunGuyZ]
    #24036203 - 01/24/17 02:27 PM (7 years, 6 days ago)

Ok so at what point do I and how do I let the PC vent for ten minutes


--------------------
PEACE, LOVE AND PSYCHEDELICS



Edited by Loveshroomz777 (01/24/17 02:28 PM)


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: FunGuyZ]
    #24036223 - 01/24/17 02:35 PM (7 years, 6 days ago)

I have a 23qt mirro. I boil water in the kettle to make things quicker, add my equipment and lock the lid into place. Usually the safety valve on the handle will pop up from the slight pressure and I'm good to go.

Just note the time when it first spits and time the cooking/sterilization process from that point. Turn the burner down to the minimum heat as long as the thing goes off once every 30/60 seconds it is good.

Don't know what the waiting 10 mins to put the weight on instructions are about, I've read that lots too, but bottom line if that weight is moving it's doing what you want it to do.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Grambo] * 1
    #24036243 - 01/24/17 02:46 PM (7 years, 6 days ago)

You need to vent to remove air. Otherwise you pressurize air and stream. If you know anything about partial pressures in gasses you'll know that you're not actually at 15psi of steam since some of those psi's are useless pressurized air.

Vent is important


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Grambo]
    #24036245 - 01/24/17 02:46 PM (7 years, 6 days ago)

What do you mean when it first spits


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036257 - 01/24/17 02:52 PM (7 years, 6 days ago)

Ok so here's my take on pressure cooking

I put one inch of water
Put the weight on let it build to 15 psi
Once it reaches 15 psi bring the heat down so the weight slowly rocks back and forth
Time for sixty minutes
Can someone please correct me if I'm wrong
Also how do I know when it has reached 15 psi it has reached 15 psi when it is steadily rocking correct


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036284 - 01/24/17 03:02 PM (7 years, 6 days ago)

The mirro comes with 3 weights 5,10,15 psi, use the large one (should be stamped on it).

If this guy is telling you to vent first... do it! I am still a beginner and I have taken his advice and seen how he answers questions, he is very knowledgeable. 

I never bothered with venting and admittedly don't understand what he means with that answer but better safe than sorry. Do that as it is heating up and steam is coming out the valve for 15 and throw on the 15psi weight.

The cooker has a plate that goes in the bottom. Fill with water till it is at the bottom of the plate so you don't boil it dry.

Sorry if I misled you.


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: Grambo]
    #24036295 - 01/24/17 03:05 PM (7 years, 6 days ago)

Thanks Bod, I learned something again, didn't mean to be a source of misinformation.

By "spit" I mean when the rocker weight starts to spit steam.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036318 - 01/24/17 03:13 PM (7 years, 6 days ago)

The air we all breathe in is at 14.7psi at sea level. That's one BAR.

Co2 O2 N2 H2 as well as water vapor and helium argon etc..... All make up air.

The partial pressures add up to 14.7 but each gas itself has smaller individual pressures. So like trace gasses like neon make up 0.001psi of air for instance.

http://christianevidences.org/wp-content/uploads/2013/08/partial-pressures-1.jpg

Here's an example

So if you don't get all the air out of the pressure cooker you will have less than 15psi of steam even if the gauge says its at 15 or the weight jiggles.

The venting makes sure only water vapor exists in every crevice of your jars and all the volume in the pressure cooker.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Grambo]
    #24036319 - 01/24/17 03:13 PM (7 years, 6 days ago)

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


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036333 - 01/24/17 03:18 PM (7 years, 6 days ago)

Yes, it's in the manual find the manual as a PDF online read it.
You vent once steam is being made and steadily coming out of the hole the weight goes on set a timer for 5-10 minutes then put the weight on.

Dont use just one inch of water either use as much water as you can until the bottom layer of what you're sterilizing starts to float then take some back out so they don't float around.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036342 - 01/24/17 03:19 PM (7 years, 6 days ago)

Awesome thanks man


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036381 - 01/24/17 03:30 PM (7 years, 6 days ago)

Then the weight goes on goes up to 15 heat goes down to maintain 15 for the time


Extras: Filter Print Post Top
OfflineThe_breadsticks
Stranger


Registered: 09/23/16
Posts: 220
Last seen: 3 years, 5 days
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036396 - 01/24/17 03:34 PM (7 years, 6 days ago)

Quote:

Loveshroomz777 said:
Awesome thanks man




Turn the heat on. When the red button on the handle shoots up, you're good to put the weight on. Sometimes you need to give the red button a tap for it to shoot up. This button tells you when it's time to put the weight on, and also locks the lid in place.

The bigger red button not on the handle is the emergency pressure release, don't mind that.

I have the exact same PC. LOVE it. It's like an inch short of holding 10 quart jars though :frown:

Also make sure to push the weight all the way down. It has an internal wire that keeps the weight from falling off, and you have to push down hard enough to get the ridge past the wire. If you look at the bottom of the weight, you will see what I mean.


--------------------
FREE TUMP


Edited by The_breadsticks (01/24/17 03:36 PM)


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24036401 - 01/24/17 03:35 PM (7 years, 6 days ago)

Never seen a 23q cooker that didn't hold three more ontop of the first layer of 7


Extras: Filter Print Post Top
OfflineThe_breadsticks
Stranger


Registered: 09/23/16
Posts: 220
Last seen: 3 years, 5 days
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036406 - 01/24/17 03:38 PM (7 years, 6 days ago)

Quote:

bodhisatta said:
Never seen a 23q cooker that didn't hold three more ontop of the first layer of 7




I don't think mirro makes a 23, they're all 22 from what I've seen. At least that's what they make now for the cheap.


--------------------
FREE TUMP


Edited by The_breadsticks (01/24/17 03:39 PM)


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24036407 - 01/24/17 03:39 PM (7 years, 6 days ago)

Ouch. Bogus mirro get a presto


Extras: Filter Print Post Top
OfflineThe_breadsticks
Stranger


Registered: 09/23/16
Posts: 220
Last seen: 3 years, 5 days
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036411 - 01/24/17 03:41 PM (7 years, 6 days ago)

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.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24036432 - 01/24/17 03:52 PM (7 years, 6 days ago)

Pretend it's not there. And it's the same thing


Extras: Filter Print Post Top
OfflineThe_breadsticks
Stranger


Registered: 09/23/16
Posts: 220
Last seen: 3 years, 5 days
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036455 - 01/24/17 03:59 PM (7 years, 6 days ago)

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!"


--------------------
FREE TUMP


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24036468 - 01/24/17 04:02 PM (7 years, 6 days ago)

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


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036635 - 01/24/17 05:06 PM (7 years, 6 days ago)

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.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Grambo] * 1
    #24036666 - 01/24/17 05:18 PM (7 years, 6 days ago)

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


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036700 - 01/24/17 05:35 PM (7 years, 6 days ago)

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.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Grambo]
    #24036707 - 01/24/17 05:38 PM (7 years, 6 days ago)

deleted


--------------------
PEACE, LOVE AND PSYCHEDELICS



Edited by Loveshroomz777 (01/24/17 05:50 PM)


Extras: Filter Print Post Top
OnlineLogicaL ChaosM
Ascension Energy & Alien UFOs
Male User Gallery


Folding@home Statistics
Registered: 05/12/07
Posts: 69,360
Loc: The Inexpressible... Flag
Last seen: 1 minute, 18 seconds
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036736 - 01/24/17 05:46 PM (7 years, 6 days ago)

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.


--------------------
"What you must understand is that your physical dimension affects everyone in the higher dimensions as well. All things are interconnected. All things are One. Therefore, if one dimension is broken or out of balance, then all other dimensions will experience repercussions." - Pleiadian Prophecy 2020 The New Golden Age by James Carwin

PROJECT BLUE BOOK ANALYSIS! (312 pages!) | Psychedelics & UFOs | Ready to Contact UFOs? | The Source on Mushrooms:shroomeryhead:| Trippy Gematrix | Dj TeknoLogical | Fentanyl Test Kits R.I.P. Big Worm :tombstone: || The Start of the Ascension Process was 2020. Welcome to the Next Great Era of Earth 🌎🌍🌏                                                         
:sunny::bliss::mushroom2: Oregon Eclipse Festival 2017 :: Aug 19th - 21st :: Pure Paradise :mushroom2::bliss::sunny: :rainbowdrink: Very Effective LSA Extraction Tek :rainbowdrink: | 💧 Advanced Cold Water LSA Extraction Method 💧 | :cacti::bongload: Mescajuana - Mescaline with Marijuana | DMT Dab Bongs | UFO Technology! :shpongle:Shpongle:shpongle:   


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: LogicaL Chaos]
    #24036798 - 01/24/17 06:01 PM (7 years, 6 days ago)

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.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Grambo]
    #24036834 - 01/24/17 06:10 PM (7 years, 6 days ago)

I think I'm going to put a inch and a half then what do you think


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24036842 - 01/24/17 06:13 PM (7 years, 6 days ago)

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


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036877 - 01/24/17 06:23 PM (7 years, 6 days ago)

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.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Grambo]
    #24036923 - 01/24/17 06:40 PM (7 years, 6 days ago)

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


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: bodhisatta]
    #24036952 - 01/24/17 06:47 PM (7 years, 6 days ago)

You are awesome bodhisatta  thanks for taking the time and blessing us with your knowledge


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
OfflineThe_breadsticks
Stranger


Registered: 09/23/16
Posts: 220
Last seen: 3 years, 5 days
Re: Mirro pressure cooker [Re: Grambo]
    #24038081 - 01/25/17 08:59 AM (7 years, 5 days ago)

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?!


--------------------
FREE TUMP


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24038085 - 01/25/17 09:02 AM (7 years, 5 days ago)

Jars will crack if they cool down to quickly


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: bodhisatta]
    #24038556 - 01/25/17 12:34 PM (7 years, 5 days ago)

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.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Grambo]
    #24038836 - 01/25/17 02:40 PM (7 years, 5 days ago)

Psi and psi gauge.
One takes into account the pressure on earth one considers the pressure on earth as the 0 point


Extras: Filter Print Post Top
OfflineGrambo
Male User Gallery

Registered: 04/04/16
Posts: 212
Loc: Canaba Flag
Last seen: 2 years, 11 months
Re: Mirro pressure cooker [Re: bodhisatta]
    #24038939 - 01/25/17 03:20 PM (7 years, 5 days ago)

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!



Extras: Filter Print Post Top
OfflineKillaFromManilla
Stranger


Registered: 06/15/16
Posts: 7
Last seen: 7 years, 5 days
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24039231 - 01/25/17 04:44 PM (7 years, 5 days ago)

I have had jars crack as I was putting them in the pressure cooker.  I believe they were slightly damaged however, and the temperature change blew them out.  Any large temperature swing between the water and glass can cause shock to the glass, that's why we don't throw warm water on our car windows to clean them off.  However it's got to be a large swing of temperature for intact glass to give out.  Basically, if you don't let it vent the air out it may read 15psi on a gauge or it may even rock your 15lb weight, but the psi inside the pressure cooker will not be that high.  Your temperature won't be as high as you were intending.  You may still have success at sterilization, you may not.


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: KillaFromManilla]
    #24039429 - 01/25/17 06:07 PM (7 years, 5 days ago)

It will be that high in the PC if the gauge says it is or the rocker moves, 15 is 15 is 15. the partial pressure of steam will be less than 15 as some of that 15psi is made up of the dry air's pressure.

Pretend you have a balloon of 20% N2 and 80% O2 at 10psi
The o2 contribute 8 psi the n2 contribution is 2psi.
This is an oversimplified version and assumed ideal gas laws in effect.

Look up the gas law, ideal gas law, and partial pressure


Extras: Filter Print Post Top
OfflineKillaFromManilla
Stranger


Registered: 06/15/16
Posts: 7
Last seen: 7 years, 5 days
Re: Mirro pressure cooker [Re: bodhisatta]
    #24039541 - 01/25/17 06:48 PM (7 years, 5 days ago)
Log in to view attachment

You're right about the pressure, I was mixed up obviously. I apologize, been a few years since college. However, the temperature portion is correct.  Here's a very interesting experiment on several bacteria that shows the time increase needed to reach sterilization is greatly increased if air isn't evacuated.  Just 25% air volume can double sterilization time of wet cotton swabs inoculated with two species of clostridium.  It's really an interesting read.


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: KillaFromManilla]
    #24047237 - 01/28/17 06:54 PM (7 years, 2 days ago)

Any suggestions as to how high I should have my jars off the bottom of the PC I was thinking 1 inch and a half from what I have read what do you guys think


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisiblePipefitter537
You're Not Yelping
 User Gallery


Registered: 11/25/16
Posts: 715
Loc: SodoSopa
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24047252 - 01/28/17 07:00 PM (7 years, 2 days ago)

That should be fine. How long of a cycle are you running?


--------------------
"You should never underestimate the predictability of stupidity"-Bullet Tooth Tony




Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Pipefitter537]
    #24047414 - 01/28/17 08:07 PM (7 years, 2 days ago)

Ninety minutes and thanks for the help


--------------------
PEACE, LOVE AND PSYCHEDELICS



Edited by Loveshroomz777 (01/28/17 08:10 PM)


Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24047442 - 01/28/17 08:27 PM (7 years, 2 days ago)

Quote:

Loveshroomz777 said:
Any suggestions as to how high I should have my jars off the bottom of the PC I was thinking 1 inch and a half from what I have read what do you guys think



Use the trivet it comes with


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: bodhisatta]
    #24047463 - 01/28/17 08:41 PM (7 years, 2 days ago)

Ok thanks bodhisatta for the help! :smile:


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24049721 - 01/29/17 05:56 PM (7 years, 1 day ago)

So my PC comes with two trivets I am going to use one for the bottom and the second one to stack my second row of jars on top of my question is my trivet only sits about an inch above the pot will this be ok
Can I fill the water a half inch up past trivet so that I have a inch and a half of water? Also this would mean that the jars will be in a half inch of water should this be fine thanks guys


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24049817 - 01/29/17 06:27 PM (7 years, 1 day ago)

Yes the trivet is only a half inch tall. I use 3-4 quarts of water it goes half way up the side of the first layer of jars


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: bodhisatta] * 1
    #24049823 - 01/29/17 06:30 PM (7 years, 1 day ago)

Ok bodhisatta I will do it like you said thanks

I am so excited I just got the pressure cooker today I will be starting my grow on the 1st of February I will post pictures


--------------------
PEACE, LOVE AND PSYCHEDELICS



Edited by Loveshroomz777 (01/29/17 06:45 PM)


Extras: Filter Print Post Top
OfflineOrbit
Stranger
Male

Registered: 12/06/16
Posts: 127
Loc: Greatwhitenorth
Last seen: 5 years, 9 months
Re: Mirro pressure cooker [Re: Loveshroomz777] * 1
    #24050293 - 01/29/17 09:20 PM (7 years, 1 day ago)

A pc is not really that complicated. Hears some simple stuff that may shed some light for some.

Steam transfers heat better than air so you vent the air, venting times very depending on what you have in the PC. The PC vents the entire time so im not too concerned with venting. I see good steam i put the rocker on. You could do the same thing with air inside but it would take longer.

At seal level water boils at 100c.
By raising the pressure 15psi you are raising the boiling point of water 15psi 121c. Killing temp.
So you are basically raising the internal temp of the PC without boilng the water out of your media. The steam comes from the water you add. If you run your PC dry guess where the steam comes from. Media, not good,  plus you are overheating the bottom of your PC.

All the rocker does is relieves exess pressure. So if the rocker is slowly rocking (good) you have 15 psi. If it is rocking crazy you have 15psi slightly more, but are wasting energy on creating more steam. If you really overheat, the safety will blow out preventing an explosion. If the rocker has stopped you are below 15psi 121c.
Hope this sheds a little light.


--------------------
For Canadian trades PM me.


Extras: Filter Print Post Top
OnlineLogicaL ChaosM
Ascension Energy & Alien UFOs
Male User Gallery


Folding@home Statistics
Registered: 05/12/07
Posts: 69,360
Loc: The Inexpressible... Flag
Last seen: 1 minute, 18 seconds
Trusted Cultivator
Re: Mirro pressure cooker [Re: Orbit]
    #24050653 - 01/30/17 12:43 AM (7 years, 21 hours ago)

Well said :thumbup:


Extras: Filter Print Post Top
OfflineHaywire
Wetspot Wizard
Male


Registered: 12/29/13
Posts: 1,611
Last seen: 5 days, 20 hours
Re: Mirro pressure cooker [Re: LogicaL Chaos]
    #24050873 - 01/30/17 07:10 AM (7 years, 14 hours ago)

dammit, bodhi, you should get your trusted tag just for this thread alone!
talking about composure!


--------------------
Ciao mamma, guarda come mi diverto


My grows :mushroom2: Outdoor patches


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Haywire]
    #24054535 - 01/31/17 01:19 PM (6 years, 11 months ago)

So I vented my PC and now I have the heat on medium and the weight is rocking gently but ever so often it lets out a bunch of steam and the weight rocks a lot for like three seconds then it goes back to a slow gentle rock is my temperature too high


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24054557 - 01/31/17 01:27 PM (6 years, 11 months ago)

Nvm guys I lowered my heat and it fixed the problem


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
OfflineOrbit
Stranger
Male

Registered: 12/06/16
Posts: 127
Loc: Greatwhitenorth
Last seen: 5 years, 9 months
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24055524 - 01/31/17 07:19 PM (6 years, 11 months ago)

The pressure physically can't change too quick, maybe its just some water causing it. Some electric elements turn on and off and can cause a slight swing in pressure. Sounds like you found a happy medium.:thumbup:


--------------------
For Canadian trades PM me.


Extras: Filter Print Post Top
OfflineThe_breadsticks
Stranger


Registered: 09/23/16
Posts: 220
Last seen: 3 years, 5 days
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24056658 - 02/01/17 09:01 AM (6 years, 11 months ago)

Quote:

Loveshroomz777 said:
So I vented my PC and now I have the heat on medium and the weight is rocking gently but ever so often it lets out a bunch of steam and the weight rocks a lot for like three seconds then it goes back to a slow gentle rock is my temperature too high


it's supposed to do that, set your heat to make it happen every 2 mins or so. If not, you're under pressure.


--------------------
FREE TUMP


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: The_breadsticks]
    #24057420 - 02/01/17 02:11 PM (6 years, 11 months ago)

After I adjusted my heat the weight was just rocking back and forth gently without it going out of control for a couple seconds every two minutes do you guys think my jars still got sterelized


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
InvisiblebodhisattaMDiscordReddit
Smurf real estate agent
 User Gallery
Folding@home Statistics
Registered: 04/30/13
Posts: 61,889
Loc: Milky way
Trusted Cultivator
Re: Mirro pressure cooker [Re: Loveshroomz777]
    #24057422 - 02/01/17 02:11 PM (6 years, 11 months ago)

15psi is 15psi


Extras: Filter Print Post Top
InvisibleLoveshroomz777


Registered: 11/19/16
Posts: 616
Re: Mirro pressure cooker [Re: bodhisatta]
    #24057425 - 02/01/17 02:12 PM (6 years, 11 months ago)

So then I'm good right that guy threw me off


--------------------
PEACE, LOVE AND PSYCHEDELICS



Extras: Filter Print Post Top
Jump to top Pages: 1 | 2 | 3 | 4  [ show all ]

Shop: Kraken Kratom Red Vein Kratom   Bridgetown Botanicals Bridgetown Botanicals   PhytoExtractum Kratom Powder for Sale   Original Sensible Seeds Bulk Cannabis Seeds   North Spore Cultivation Supplies


Similar ThreadsPosterViewsRepliesLast post
* a mirro pressure cooker question ?!?!? Fiend_13 984 3 08/05/03 07:08 PM
by Fiend_13
* mirro p-cooker problem liquidplaya 915 2 10/21/01 09:13 AM
by Azure
* Help buying a small Pressure Cooker Tenchi 1,398 6 01/31/03 02:52 PM
by Tenchi
* Pressure Cooker...Will these deliver?
( 1 2 all )
Zwieback0 2,113 22 10/24/02 04:13 PM
by Skikid16
* pressure cooker
( 1 2 3 all )
newcultivator 5,757 42 09/07/04 12:50 AM
by seatrip
* Is this Normal for a Pressure Cooker? WhAcKeD 976 11 02/11/06 10:23 AM
by WhAcKeD
* How do I use this pressure cooker? IcebergMcNasty 695 5 01/08/05 11:19 PM
by booknik
* Pressure cooker question HELP Syd_barret 854 3 11/19/01 09:18 PM
by Syd_barret

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, veggie, mushboy, fahtster, LogicaL Chaos, 13shrooms, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
1,692 topic views. 22 members, 253 guests and 40 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.055 seconds spending 0.02 seconds on 14 queries.