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OfflineEZRider
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Registered: 04/19/10
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Last seen: 13 years, 8 months
Could the PF Jars Themselves Function as Pressure Cookers?
    #12424390 - 04/20/10 12:45 AM (13 years, 9 months ago)

Forgive me if this seemingly obvious point has already been raised, but I did try a search and came up empty. If I were to give my half-pint jars of substrate the vegetable steamer treatment as shown in the “Let’s Grow Mushrooms!” video, but departed from the instructions by fully tightening the lids and only putting one tiny hole in them--or no holes at all, not that I would try that--would the jars function as little pressure cookers in their own right?


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Everybody wanna be some fat tycoon
Everybody wanna be on a tropic honeymoon
Nobody wanna sing a little bit out of tune
Or be the backbone of a rebel platoon


--Michael Franti and Spearhead, "Rock the Nation"


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InvisibleMystery420
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Re: Could the PF Jars Themselves Function as Pressure Cookers? [Re: EZRider]
    #12424395 - 04/20/10 12:47 AM (13 years, 9 months ago)

Why would you want to? steam sterilization is fine for the pf tek so why change it?


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"I'm the one who's gonna die when it's time for me to die, so let me live my life the way I want."
-Jimi Hendrix

So fuck ya'll all of ya'll If ya'll don't like me blow me


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OfflineEZRider
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Registered: 04/19/10
Posts: 43
Last seen: 13 years, 8 months
Re: Could the PF Jars Themselves Function as Pressure Cookers? [Re: Mystery420]
    #12424427 - 04/20/10 12:57 AM (13 years, 9 months ago)

Because I tried the PF Tek once before, and had a ~50% contamination rate despite following the video to the letter. Admittedly, that was probably due mostly (if not exclusively) to the fact that my spores came from a vendor who turned out to be notoriously shady, but I'd still like to know what the experts think of this idea.


--------------------
Everybody wanna be some fat tycoon
Everybody wanna be on a tropic honeymoon
Nobody wanna sing a little bit out of tune
Or be the backbone of a rebel platoon


--Michael Franti and Spearhead, "Rock the Nation"


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OfflineFahkface
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Re: Could the PF Jars Themselves Function as Pressure Cookers? [Re: EZRider]
    #12424447 - 04/20/10 01:02 AM (13 years, 9 months ago)

It would be more than likely, that either the lids would pop off or the jars would burst as a whole, when you screw them tightly and put them in a pod, boiling them.

There's a reason, why pressure cookers made from rather thick metal:wink:.


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OfflineEZRider
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Registered: 04/19/10
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Re: Could the PF Jars Themselves Function as Pressure Cookers? [Re: Fahkface]
    #12424483 - 04/20/10 01:11 AM (13 years, 9 months ago)

Quote:

Fahkface said:
It would be more than likely, that either the lids would pop off or the jars would burst as a whole, when you screw them tightly and put them in a pod, boiling them.

There's a reason, why pressure cookers made from rather thick metal;).




Of course--but theoretically, shouldn't it be possible to put just the right sized hole in the lid so that the pressure would rise without anything going pop? The PSI wouldn't be anything close to that of a real pressure cooker, of course (otherwise something *would* break), but it might give you a better sterilization than no pressure at all.


--------------------
Everybody wanna be some fat tycoon
Everybody wanna be on a tropic honeymoon
Nobody wanna sing a little bit out of tune
Or be the backbone of a rebel platoon


--Michael Franti and Spearhead, "Rock the Nation"


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Offlinescatmanrav
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Re: Could the PF Jars Themselves Function as Pressure Cookers? [Re: EZRider]
    #12424626 - 04/20/10 01:56 AM (13 years, 9 months ago)

No thats not how it works..

I can my own stocks (yanno, beef, chicken, veggie) and spagetti sauce and such..you need to PC them too. Theres no holes in the lids and they dont explode if you boil them, but they dont get sterilized.

Putting holes will just release pressure..youd need a hole regulated with a weight (how a PC works). But the liquid inside, and so the substrate, would not get up to PC temps.

Plus with no holes or a few holes..you'll come into more problems when your trying to knock them up..and your gonna do something that would be not very sterile.

But PF Tek jars can be steamed..and you dont need a PC..so who cares?a


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"life is like a drop of rain getting closer and closer to falling into a lake, and then when you hit the lake there is no more rain drop, only the lake."

Growing with bags, start to finish (including my new grain and substrate prep)
Anyone looking to start bulk tubs/mono tubs/shotgun hybrids? Good tubs to use..
How I do grain (old still good tips)
Turn your closet into a fruiting chamber
Casing layer colonization and overlay


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OfflineRogerRabbitM
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Re: Could the PF Jars Themselves Function as Pressure Cookers? [Re: EZRider]
    #12425728 - 04/20/10 10:01 AM (13 years, 9 months ago)

The answer is no because jars can't hold pressure.  If you try to build pressure in a mason jar, it will either slip out under the lid or explode the jar.  Use the proper sterilization technique.
RR


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Download Let's Grow Mushrooms



semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
Thomas Edison


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