|
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
|
hiperhiper
Stranger
Registered: 06/14/15
Posts: 82
Last seen: 8 years, 3 months
|
Scared with pressure cooker
#21898382 - 07/04/15 08:25 PM (8 years, 6 months ago) |
|
|
Hey guys, I'm close to start the process right now and needing some support from you. I've always been scared of pressure cookers, specially when putting glass inside.
This is my current process:
I made 2 holes in my mason jars. I also cut a mask filter and place it between the jar and the lid.
Is this filter ok or is it too thick?



After that I've cooked 850grams / full bag of Redmill wheat berries for 20 minutes.

After that I put some lids on the bottom of the pressure cooker plus a cloth, so the jars won't touch the bottom.

I've managed to place 4 medium sized jars on the pressure cooker.

My question is, how to avoid explosion on the pressure cooker? does the jar need to "breathe" through the lid holes which I also have the filter and not be sealed? is the cloth still necessary when I have the lids on the top? Is this pressure cooker fine (apart from the size)

Is it really going to sterilize? I was watching some youtube videos and some people were saying (not mushroom growers) that the pressure cooker is not really effectfull for killing bacteria.
I also haven't soaked the wheat overnight, so I'm not sure if I need more time to expose bacteria expores.
I'm waiting for you guys to say the "go ahead" because I don't want to screw up. I'm a newbie I've been reading a lot of material and I've made a lot of mistakes still.
|
mushmagic
supporting radical habits



Registered: 03/21/12
Posts: 5,372
Loc: Candyland
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21898397 - 07/04/15 08:30 PM (8 years, 6 months ago) |
|
|
Dont seal the holes in the lid just cover the jar lid with foil during the PC run.
If ran properly it shouldn't explode.
Not too sure about those filters tho and I'm assuming they weren't cheap either?
--------------------
Trade list in journal (partially under construction; more to be added) Don't judge a man by what kinda shoes he in, judge a man on where that man's shoes been.
|
Syntheticwords
Victus


Registered: 08/13/11
Posts: 375
Last seen: 6 years, 9 months
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21898414 - 07/04/15 08:34 PM (8 years, 6 months ago) |
|
|
I remember being afraid of my first PC I was like a caveman and stood about 10 ft away poking it with a stick
But anyways I know nothing of the filters you use. I do however know that the filter should go Ontop the lid Not between the jar and the lid Then cover with two layers of foil
Also you say "is it really going to sterilize"?
 Why else would the majority of the community do their grains in a pressure cooker?
Aslong as you pc at 15 psi for 90 minutes you should be good
|
Syntheticwords
Victus


Registered: 08/13/11
Posts: 375
Last seen: 6 years, 9 months
|
|
Also. Nothing is going to explode, it's reccommended you tighten your jars all the way tight. Then loosen the lid by a 1/4 turn, then after you pc, close the lid tightly and Shake that jar up
You are not a terrorist all of a sudden
You are a mycologist
|
TraxSeos
Wisdom Is Infinite



Registered: 01/28/13
Posts: 314
Loc: Dagobah System
Last seen: 1 year, 2 months
|
Re: Scared with pressure cooker [Re: mushmagic]
#21898425 - 07/04/15 08:37 PM (8 years, 6 months ago) |
|
|
like he said, cover lids with aluminum foil, you don't want to oversaturate your substrate. pressure cookers are usually manufactured with several safety features to avoid any dangerous cooking. As long as steam is leaving your pressure cooker, you should be fine. Its capturing all the steam inside and building high pressure that causes pressure cooker explosions.
--------------------
Everything I say and post are twisted plots from my dreams. All my pictures are stolen from the internet. Have a nice day
|
hiperhiper
Stranger
Registered: 06/14/15
Posts: 82
Last seen: 8 years, 3 months
|
Re: Scared with pressure cooker [Re: TraxSeos]
#21898449 - 07/04/15 08:46 PM (8 years, 6 months ago) |
|
|
so the jars can't explode inside the pressure cooker?
|
TraxSeos
Wisdom Is Infinite



Registered: 01/28/13
Posts: 314
Loc: Dagobah System
Last seen: 1 year, 2 months
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21898485 - 07/04/15 08:54 PM (8 years, 6 months ago) |
|
|
No, at least not inside the 90 minutes lol. Who knows what happens if you leave them in there without more water to steam up.
--------------------
Everything I say and post are twisted plots from my dreams. All my pictures are stolen from the internet. Have a nice day
|
DensePlacebo
Stranger



Registered: 05/14/15
Posts: 186
Loc: canada
Last seen: 6 years, 4 months
|
Re: Scared with pressure cooker [Re: TraxSeos]
#21898598 - 07/04/15 09:24 PM (8 years, 6 months ago) |
|
|
They will explode if you release the pressure really fast during or after the heat.
-------------------- Alright then, picture this if you will: 10 to 2 AM, X, Yogi DMT, and a box of Krispy Kremes, in my "need to know" post, just outside of Area 51. Contemplating the whole "chosen people" thing with just a flaming stealth banana split the sky like one would hope but never really expect to see in a place like this. Cutting right angle donuts on a dime and stopping right at my Birkenstocks, and me yelping... Holy fucking shit!
|
TraxSeos
Wisdom Is Infinite



Registered: 01/28/13
Posts: 314
Loc: Dagobah System
Last seen: 1 year, 2 months
|
|
Quote:
DensePlacebo said: They will explode if you release the pressure really fast during or after the heat.
Didn't know that, thanks for spreading your knowledge. You'd be a fool to open the cooker while heated up anyways though.
--------------------
Everything I say and post are twisted plots from my dreams. All my pictures are stolen from the internet. Have a nice day
|
ShroominMe
Stranger

Registered: 05/03/15
Posts: 525
Last seen: 8 years, 3 months
|
Re: Scared with pressure cooker [Re: TraxSeos]
#21898775 - 07/04/15 09:59 PM (8 years, 6 months ago) |
|
|
Check out YouTube for videos of your specific pc in action. That will help quite a bit with your stress level.
|
nk122
Grower

Registered: 07/04/15
Posts: 59
Last seen: 2 years, 11 months
|
Re: Scared with pressure cooker [Re: ShroominMe]
#21899425 - 07/05/15 01:21 AM (8 years, 6 months ago) |
|
|
Dont let the PC run dry either or you can severely damage the PC or yourself other than that man start that thing up get some decent home insurance too put your mind at ease i use a 64qt pc on a daily basis make sure you have a good seal watch it as it creates the seal lock and its venting properly read manual youll be fine dont sweat it dude
|
Juiceh
Dabbing All Day



Registered: 09/25/12
Posts: 3,208
|
Re: Scared with pressure cooker [Re: nk122]
#21899604 - 07/05/15 03:13 AM (8 years, 6 months ago) |
|
|
Quote:
nk122 said: i use a 64qt pc on a daily basis
What brand?
Quote:
hiperhiper said:



These lids make no sense. Looks like you plan to inject through the smaller hole in your lid which will pierce the filter material rendering it ineffective as a filter. If you need an injection port use RTV silicone to fill that smaller hole and also use the rtv to attach some of that filter material to the GE hole. You would probably be better off using SFD patches though. You are also putting the lids on upside down.
Edited by Juiceh (07/05/15 03:25 AM)
|
DensePlacebo
Stranger



Registered: 05/14/15
Posts: 186
Loc: canada
Last seen: 6 years, 4 months
|
Re: Scared with pressure cooker [Re: Juiceh]
#21899619 - 07/05/15 03:32 AM (8 years, 6 months ago) |
|
|
Just last week someone made a post complaining they couldn't even get past the PC stage. Kept blowing his jars up. We were all like wtf are you doing. Well as soon as the time was up he was immediately lifting the jiggler thing and releasing all the pressure as fast as he could. He was blowing the lids off every single jar I guess. Just let it cool to room temp and you'll never blow anything up.
-------------------- Alright then, picture this if you will: 10 to 2 AM, X, Yogi DMT, and a box of Krispy Kremes, in my "need to know" post, just outside of Area 51. Contemplating the whole "chosen people" thing with just a flaming stealth banana split the sky like one would hope but never really expect to see in a place like this. Cutting right angle donuts on a dime and stopping right at my Birkenstocks, and me yelping... Holy fucking shit!
|
hiperhiper
Stranger
Registered: 06/14/15
Posts: 82
Last seen: 8 years, 3 months
|
Re: Scared with pressure cooker [Re: nk122]
#21901632 - 07/05/15 03:47 PM (8 years, 6 months ago) |
|
|
-Dont let the PC run dry either or you can severely damage the PC or yourself other than that man start that thing up get some decent home insurance too put your mind at ease i use a 64qt pc on a daily basis make sure you have a good seal watch it as it creates the seal lock and its venting properly read manual youll be fine dont sweat it dude
How do I know if it is running dry if I can't open the lid?
These lids make no sense. Looks like you plan to inject through the smaller hole in your lid which will pierce the filter material rendering it ineffective as a filter. If you need an injection port use RTV silicone to fill that smaller hole and also use the rtv to attach some of that filter material to the GE hole. You would probably be better off using SFD patches though. You are also putting the lids on upside down.
What is a SFD patch? I didn't know RTV silicone was the right one, I didn't use silicone because I thought it would melt on the pressure cooker. I read about this RTV and now I know it has temperature resistance properties. Good idea. Coming back to the LID, some guy on youtube said to use on the opposite side to prevent explosion, I really don't understand the science behind it but maybe it's to avoid building vacuum on the jars?
|
hiperhiper
Stranger
Registered: 06/14/15
Posts: 82
Last seen: 8 years, 3 months
|
|
Also is there any alternative to pressure cooker to sterilize the substrate? anything that doesn't use pressure?
|
Syntheticwords
Victus


Registered: 08/13/11
Posts: 375
Last seen: 6 years, 9 months
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21901659 - 07/05/15 03:53 PM (8 years, 6 months ago) |
|
|
You'll know its running dry if you have no steam coming out of the PC
|
Syntheticwords
Victus


Registered: 08/13/11
Posts: 375
Last seen: 6 years, 9 months
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21901705 - 07/05/15 04:04 PM (8 years, 6 months ago) |
|
|
Quote:
hiperhiper said: Also is there any alternative to pressure cooker to sterilize the substrate? anything that doesn't use pressure?
Pressure cooking offers the sterilization you seek
Also a SFD is a synthetic filter disc. Some sponsors carry it. It's what the pros you and what you should use also
|
DensePlacebo
Stranger



Registered: 05/14/15
Posts: 186
Loc: canada
Last seen: 6 years, 4 months
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21901800 - 07/05/15 04:26 PM (8 years, 6 months ago) |
|
|
Quote:
hiperhiper said: Also is there any alternative to pressure cooker to sterilize the substrate? anything that doesn't use pressure?
You have to use a PC with anything other than the pftek. Endospores man. They only die in a PC. If you use the of tek you can boil/steam them.
-------------------- Alright then, picture this if you will: 10 to 2 AM, X, Yogi DMT, and a box of Krispy Kremes, in my "need to know" post, just outside of Area 51. Contemplating the whole "chosen people" thing with just a flaming stealth banana split the sky like one would hope but never really expect to see in a place like this. Cutting right angle donuts on a dime and stopping right at my Birkenstocks, and me yelping... Holy fucking shit!
|
blackout


Registered: 07/16/00
Posts: 5,266
Last seen: 2 months, 24 days
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21901811 - 07/05/15 04:29 PM (8 years, 6 months ago) |
|
|
Quote:
hiperhiper said: Also is there any alternative to pressure cooker to sterilize the substrate? anything that doesn't use pressure?
You can boil grains for 8+ hours, or use fractional sterilization, though most instructions for fractional sterilization are totally incorrect. But you already have a pressure cooker so use it.
|
hiperhiper
Stranger
Registered: 06/14/15
Posts: 82
Last seen: 8 years, 3 months
|
|
Hi guys, sorry, I still have a few questions:
1) Should the jars be filled with any water or should they be very dry when going in the pressure cooker? 2) Should I close the jar tightly with the lid or should the lid be loose when the jars are in the pressure cooker?
Thanks!
|
blackout


Registered: 07/16/00
Posts: 5,266
Last seen: 2 months, 24 days
|
|
Quote:
hiperhiper said: 1) Should the jars be filled with any water or should they be very dry when going in the pressure cooker?
no, you have cooked the grains so they already have water. Some different teks will have you add dry grains to jars, and water, most do not do this these days.
Quote:
hiperhiper said: 2) Should I close the jar tightly with the lid or should the lid be loose when the jars are in the pressure cooker?
Already answered
Quote:
Syntheticwords said: Also. Nothing is going to explode, it's reccommended you tighten your jars all the way tight. Then loosen the lid by a 1/4 turn, then after you pc, close the lid tightly and Shake that jar up
|
hiperhiper
Stranger
Registered: 06/14/15
Posts: 82
Last seen: 8 years, 3 months
|
Re: Scared with pressure cooker [Re: blackout]
#21902131 - 07/05/15 06:01 PM (8 years, 6 months ago) |
|
|
my father told me that if the lids are sealed the air inside the bottles will expand and the jar will explode, he said to open the lids to the air doesn't expand (he is an engineer).
|
Syntheticwords
Victus


Registered: 08/13/11
Posts: 375
Last seen: 6 years, 9 months
|
Re: Scared with pressure cooker *DELETED* [Re: blackout]
#21902147 - 07/05/15 06:06 PM (8 years, 6 months ago) |
|
|
Post deleted by george castanzaReason for deletion: Uzer request
Edited by Syntheticwords (07/05/15 06:08 PM)
|
PussyFart
Retired Cultivation Extrodinaire



Registered: 04/08/12
Posts: 22,502
Loc: Orbiting Earth
Last seen: 17 days, 22 hours
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21902155 - 07/05/15 06:08 PM (8 years, 6 months ago) |
|
|
The jars should have a filter, which will allow the air pressure to equalize....
And you can PC a sealed jar, people do it all the time.....it's called canning......
As long as you let the PC depressurize naturally, nothing bad will happen.....
--------------------
THIS HOBBY IS NOT FOR THE IMPATIENT! PLEASE BE PATIENT, DON'T BE A PATIENT! A Tale of 10 Isolates, GT Cluster Clone Monotubs, RR's Let's Grow Mushrooms DVD, SGFC(Shotgun Fruiting Chamber), Monotub Tek, Damion5050's Coir Tek, TL's Tek List, Frank's Tek List, EvilMushroom666's Pasteurization Tek, How It Should & Shouldn't Look - NEW CULTIVATORS GUIDE *** *** AFGHAN KUSH GROW LOG *** ***
|
Syntheticwords
Victus


Registered: 08/13/11
Posts: 375
Last seen: 6 years, 9 months
|
|
Without dedicating too much of my brain power;
You have two holes, one for GE The other is an injection site And while the injection site is sealed you have an entire HOLE dedicated to gas exchange. No air is sealed in the jar that has an OPEN HOLE
You won't explode your jars
|
DensePlacebo
Stranger



Registered: 05/14/15
Posts: 186
Loc: canada
Last seen: 6 years, 4 months
|
Re: Scared with pressure cooker [Re: PussyFart]
#21902783 - 07/05/15 08:47 PM (8 years, 6 months ago) |
|
|
Quote:
PussyFart said: The jars should have a filter, which will allow the air pressure to equalize....
And you can PC a sealed jar, people do it all the time.....it's called canning......
As long as you let the PC depressurize naturally, nothing bad will happen.....
This is all that should of needed to be said. Done.
-------------------- Alright then, picture this if you will: 10 to 2 AM, X, Yogi DMT, and a box of Krispy Kremes, in my "need to know" post, just outside of Area 51. Contemplating the whole "chosen people" thing with just a flaming stealth banana split the sky like one would hope but never really expect to see in a place like this. Cutting right angle donuts on a dime and stopping right at my Birkenstocks, and me yelping... Holy fucking shit!
|
Devon420
ShrOoMeRiTe!!



Registered: 06/05/15
Posts: 2,748
Loc: Canada
Last seen: 8 years, 1 month
|
|
Lol I got a PC last week and treated it like a bomb it was scary but it's not that bad. New ones are pretty safe and fool proof
|
george castanza
Lord Of The Idiots!


Registered: 10/21/02
Posts: 8,723
|
Re: Scared with pressure cooker [Re: hiperhiper]
#21902921 - 07/05/15 09:21 PM (8 years, 6 months ago) |
|
|
Quote:
hiperhiper said: my father told me that if the lids are sealed the air inside the bottles will expand and the jar will explode, he said to open the lids to the air doesn't expand (he is an engineer).
. possible but not very likely . An implosion would be much more likely and still a very dark outshot at best.
Lots of good info in this thread . Caution is good but don't over stress yourself over something that will not happen.
-------------------- KRAMER CAKES


|
|