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Shop: North Spore Bulk Substrate, Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies   Amazon ½ Pint Jars, Hot Plate, Pressure Cooker, Wild Bird Seed

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Offlinechristofchristof
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Releasing the pressure from the cooker instantly
    #7473105 - 10/01/07 10:16 AM (13 years, 4 months ago)

Is this wrong? why am i supposed to leave it to cool? Im using pf tek.


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InvisibleCaptainKirk

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Re: Releasing the pressure from the cooker instantly [Re: christofchristof]
    #7473107 - 10/01/07 10:19 AM (13 years, 4 months ago)

i usally let mine cool down a bit,then flip the release valve:shrug:


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Offlinechristofchristof
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Re: Releasing the pressure from the cooker instantly [Re: CaptainKirk]
    #7473123 - 10/01/07 10:29 AM (13 years, 4 months ago)

Im sure I read somewhere last night that it does damage. Or was that with a different tek?


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Invisibleimpeachme2
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Re: Releasing the pressure from the cooker instantly [Re: christofchristof]
    #7473155 - 10/01/07 10:48 AM (13 years, 4 months ago)

Your PC may implode if you release the pressure instantly, depending on the pressure it's at, and the rate at which this is done. Don't fuck with pressure cookers, because you may kill yourself.


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OfflineanarchOi
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Re: Releasing the pressure from the cooker instantly [Re: christofchristof]
    #7473158 - 10/01/07 10:49 AM (13 years, 4 months ago)

why you shouldn't do that;

there is a good chance you will get sprayed with scalding water
also there is an even better chance that you will break a jar, possibly resulting in being sprayed with scalding water and glass shards

when you pressure cook something, the keyword is PRESSURE
the reason we pressure cook instead of simply boiling our substrate is because water cannot exist above boiling temp unless kept under pressure
if your jars don't break, you're likely to lose alot of that moisture you worked so hard to get in there
if the pressure inside of a jar instantly changes, what effects do you think this will have on the glass?
this will also likely ruin any tyvek filters
the heated water tries to dissapate when pressure is released
giving you quite a gas buildup


Edited by anarchOi (10/01/07 10:51 AM)


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OfflineVegan
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Re: Releasing the pressure from the cooker instantly [Re: anarchOi]
    #7473198 - 10/01/07 11:15 AM (13 years, 4 months ago)

OHHH so you wanna lessen the time that it takes , so you can continue on with the next set of jars, right...

I did this with about 12 jars of WBS , turns out that by not letting the PC cool on its own. the heated jars will actually create a pressure kinda effect and you will actually push some of the moisture out of them , thereby changing the water content..

MY WBS dried up so much it wouldn't colonize,
RogerRabbit actually posted and explained it better..
just let em cool of the burner


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OfflineVegan
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Re: Releasing the pressure from the cooker instantly [Re: anarchOi]
    #7473208 - 10/01/07 11:21 AM (13 years, 4 months ago)

Quote:

anarchOi said:
why you shouldn't do that;

there is a good chance you will get sprayed with scalding water
also there is an even better chance that you will break a jar, possibly resulting in being sprayed with scalding water and glass shards

when you pressure cook something, the keyword is PRESSURE
the reason we pressure cook instead of simply boiling our substrate is because water cannot exist above boiling temp unless kept under pressure
if your jars don't break, you're likely to lose alot of that moisture you worked so hard to get in there
if the pressure inside of a jar instantly changes, what effects do you think this will have on the glass?
this will also likely ruin any tyvek filters
the heated water tries to dissapate when pressure is released
giving you quite a gas buildup




sorry anarch Ididnt read your reply ..thats abetter explanation than mine IMO


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Offlinechristofchristof
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Re: Releasing the pressure from the cooker instantly [Re: Vegan]
    #7473221 - 10/01/07 11:27 AM (13 years, 4 months ago)

Ah ok thanks. My pressure cooker is only small so i had to refill it half way through, therefor i released all the pressure. Does that mean this jar is ruined?


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Offlineveda_sticks
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Re: Releasing the pressure from the cooker instantly [Re: Vegan]
    #7473224 - 10/01/07 11:28 AM (13 years, 4 months ago)

also remember that if u leave it to cool on its on, it will still be sterilising as its cooling, pressure cookers will usually maintain enough pressure to continue sterlising for 15-20 minutes.


--------------------

PF TEK - writeup by EvilMushroom666
Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD
Cakes can and will pin! - So you think cakes suck for pins. Your wrong
Franks Simple Coir/Verm Tek
Franks Proper Pasturisation Tek
Franks Spawning To Bulk - Monotub
Professor Pinheads RTV Injection Port Tek
Foo Mans No Soak WBS Prep Tek


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Offlinexhooliganx
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Re: Releasing the pressure from the cooker instantly [Re: veda_sticks]
    #7473293 - 10/01/07 11:59 AM (13 years, 4 months ago)

if yu had to refill it half way through you're doing something wrong.


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OfflineMFGFA37
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Re: Releasing the pressure from the cooker instantly [Re: xhooliganx]
    #7473447 - 10/01/07 12:54 PM (13 years, 4 months ago)

or your pressure cooker is leaking from the seal, possibly a crack, but doubtful. Is there a bunch of steam leaking from the seal?


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Take no thought for tomorrow, tomorrow shall take thought for itself. Sufficient for one day are the thoughts/worries for that day. Any thought past this is useless. -Ole Jesus-


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OfflineVegan
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Re: Releasing the pressure from the cooker instantly [Re: MFGFA37]
    #7474046 - 10/01/07 03:35 PM (13 years, 4 months ago)

well depending on the size and how much water is in it (diplacement via jars)..if the weight is rockin 100mph I could see losing a lot of water but not in a half hour..


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OfflineSkeeblix
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Re: Releasing the pressure from the cooker instantly [Re: Vegan]
    #7474111 - 10/01/07 03:48 PM (13 years, 4 months ago)

You might just have your stove turned up too high. You want the rocker only just going off as it's cooking. Try turning your stove down a bit, and see how low you can turn it without the rocker stopping. Then adjust it back up to the lowest temperature you can maintain steady rocker action at, and keep it there.


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This post approved by:


Premedman1 said:
:lol: I just shat my pants.


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Offlinechristofchristof
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Re: Releasing the pressure from the cooker instantly [Re: Skeeblix]
    #7474173 - 10/01/07 04:06 PM (13 years, 4 months ago)

Na the pressure cooker is ok, its just small so the jar doesnt fit in it with the original shelf, so i made an artificial shelf out of crushed beer cans and foil. Its just a really low shelf so i can barley fit any water in. I think i will just cook it for half hour then leave it to stand, like someone said it can cook for 15 mins after been taken off the stove. Thanks for the answers.


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OfflinehIgHdRoLoVeR
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Re: Releasing the pressure from the cooker instantly [Re: christofchristof]
    #7474792 - 10/01/07 07:37 PM (13 years, 4 months ago)

opening your pressure cooker before its cooled down invites contams into your jars (lids are loose)..
the air inside the jar is cooler than outside temps..as a jar cools the air inside condenses and will suck dirty air into the jar (as it equalizes pressure)..let the pc cool to the touch before you open it (room temp).....i leave the lid on mine and once its cool enough to touch i put it in a sink of cool water, to cool it further before i open it..
ive never had contam in any grain spawn or cakes so i think cooling helps more than we may think


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Offlinesoulsizzle
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Re: Releasing the pressure from the cooker instantly [Re: hIgHdRoLoVeR]
    #7475973 - 10/02/07 01:40 AM (13 years, 4 months ago)

i don't understand why the height of your "shelf" should have any effect on the amount of water that you put in the pressure cooker. you can have the water in the pressure cooker come up 1/4 of the way up the jars. you shouldn't have any worries about running out of water then.


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Offlineveda_sticks
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Re: Releasing the pressure from the cooker instantly [Re: soulsizzle]
    #7476394 - 10/02/07 06:56 AM (13 years, 4 months ago)

Yeah its preferable to have the jars not sitting in the water but if u have a small pressure cooker then its ok to have some water touching the glass.

Before i had a pressure cooker i had to have jars sitting a bit in the water of my pot and they turned out fine.

U dont want steam furiously hissing out of the rocker weight, once its heated up and it starts hissing furiously turn it down till u just get a slight his from it.


--------------------

PF TEK - writeup by EvilMushroom666
Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD
Cakes can and will pin! - So you think cakes suck for pins. Your wrong
Franks Simple Coir/Verm Tek
Franks Proper Pasturisation Tek
Franks Spawning To Bulk - Monotub
Professor Pinheads RTV Injection Port Tek
Foo Mans No Soak WBS Prep Tek


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Shop: North Spore Bulk Substrate, Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies   Amazon ½ Pint Jars, Hot Plate, Pressure Cooker, Wild Bird Seed

Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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