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Re: Home-made, high-volume Pressure Cooker [Re: blackdust]
    #11707213 -

I was overdue for some grain-to-grain transfers, so I decided to finally test my big custom-built pressure cooker.  I had no idea how many mason jars it would hold. I had guessed about 35.

I was wrong. It holds 40 one quart jars, and 13 half quart jars, for a total of 46.5 jarred quarts. I was really happy about this, as it means that I can run my pressure cooker quite infrequently, but still have lots of sterilized grain to work with. Also, it was easy to load and unload, using cords tied to a platform at the bottom. I could load / unload everything by hand, except for the bottom layer, for which I needed to pull up the platform, like raising a bucket from a well (real easy). Also, with a couple of wool blankets of insulation, she reached 15 PSI in about an hour, and then I was able to turn down the burner to medium, and she held her heat.

All in all, I'm satisfied with how she works. A bit of rust drips off the lid, so maybe next time I'll smear it with vaseline and see if that helps any.

Now, I have to go and deal with those 53 jars!





Edited by Puma (12/23/09 08:02 PM)

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Re: Home-made, high-volume Pressure Cooker [Re: Puma]
    #11707259 -

That my friend, is intense.
pics/specs of cooker?
How'd you make it?


--------------------
"Don't attempt to stifle his experimentation because you have a hardon for me." -RogerRabbit

LEARN TENACITY - HAVE PATIENCE.
WITHOUT IT - YOU WILL NOT SUCCEED AT THIS HOBBY.
-Agar

THIS SHIT IS MAGICAL TRIPSTALMETH STOP JUDGEMENTING ON MY HABITS

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Re: Home-made, high-volume Pressure Cooker [Re: Ingrimus]
    #11707262 -

and how do you know it's at the right psi?


--------------------
"Don't attempt to stifle his experimentation because you have a hardon for me." -RogerRabbit

LEARN TENACITY - HAVE PATIENCE.
WITHOUT IT - YOU WILL NOT SUCCEED AT THIS HOBBY.
-Agar

THIS SHIT IS MAGICAL TRIPSTALMETH STOP JUDGEMENTING ON MY HABITS

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Re: Home-made, high-volume Pressure Cooker [Re: Ingrimus]
    #11707327 -

Check the beginning of this thread, it tells the whole story. I found an old All-American PC lid at the scrap metal yard, and removed the gauge, and installed it on the metal plate being used for this unit.

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Re: Home-made, high-volume Pressure Cooker [Re: Puma]
    #11707352 -

my buddy comes home from the military in january and he has plans of building a huge pc and everyone else thinks he is crazy and he is going to blow himself up. He is well educated and highly skilled but i am not going to hang around for the testing :smile: I sent him your post for inspiration... and thanks for noting that it has also been done before with a beer keg great post good luck

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Re: Home-made, high-volume Pressure Cooker [Re: stoner42001]
    #11707370 -

WOW IM A RETARD.
I thought I had first post.
DERP! (this kids is why you don't wake n bake with a hangover)

Sorry.


--------------------
"Don't attempt to stifle his experimentation because you have a hardon for me." -RogerRabbit

LEARN TENACITY - HAVE PATIENCE.
WITHOUT IT - YOU WILL NOT SUCCEED AT THIS HOBBY.
-Agar

THIS SHIT IS MAGICAL TRIPSTALMETH STOP JUDGEMENTING ON MY HABITS

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Re: Home-made, high-volume Pressure Cooker [Re: Ingrimus]
    #11707418 -

Amazing though man, seriously amazing.


--------------------
"Don't attempt to stifle his experimentation because you have a hardon for me." -RogerRabbit

LEARN TENACITY - HAVE PATIENCE.
WITHOUT IT - YOU WILL NOT SUCCEED AT THIS HOBBY.
-Agar

THIS SHIT IS MAGICAL TRIPSTALMETH STOP JUDGEMENTING ON MY HABITS

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Re: Home-made, high-volume Pressure Cooker [Re: Ingrimus]
    #11708284 -

Way to pressure cook man! :super:


--------------------
Gypsum/Drywall Tek
The Story Of Russell The Texas (Cube) Bear



The human race's prospects of survival were considerably better when we were defenceless against tigers than they are today when we have become defenceless against ourselves.
-Arnold J. Toynbee

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Re: Home-made, high-volume Pressure Cooker [Re: Puma]
    #12176466 -

That is sweet

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Re: Home-made, high-volume Pressure Cooker [Re: IslandShroomBoy]
    #12176511 -

Holy cow man, thats a nice PC. I wish I had a shop like that so I could build cool stuff too. :frown:


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Re: Home-made, high-volume Pressure Cooker [Re: KillaFoRilla]
    #12176781 -

I thought of building my own pressure cooker but after seeing this it makes me think twice...nice job man and keep up the good work.

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Re: Home-made, high-volume Pressure Cooker [Re: basic360]
    #12176850 -

envious doesn't even describe how i feel.


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[quote]RogerRabbit said:
Ah, that explains it.  Typical know-it-all noob.  We get a few thousand just like you register here every year.  They try a few grows, fail miserably and then after a few months or one bad trip, go back to sniffing glue, never to be seen again.

We have a basic pf tek that's idiot proof enough for noobs to get fucked up with their friends. 

Mycologists on the other hand grow for the love of growing.  They want to experiment with various species, substrates, and fruiting environments. They'll move on to isolate strains, attempt hybridization, and in general treat cultivation as an artform, rather than a chore that must be performed as a means to an end.  They'll work twice as hard for a ten percent gain, just for the love of perfection.  These are the ones who will isolate strains, not the dumb fucks who treat mushrooms as a drug, or even worse, a pathogen, as if mushrooms cause disease.
RR [/quote]

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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Puma]
    #13382808 -

Badass PC!!!

do you still have it, how is it holding up?

Did you ever make a jacket for it?


I thought of this: or some double bubble but single bubble may work way better



Maybe tied or bungied, But this stuff can create very very high thermal R values for that PC.


I kow i know old post and sice i dont know the lil
:blank: for the resurrected old post here ya go    :thispostcrawlingoutfromthegrave: :lol:

Edited by Barakanaten (10/25/10 07:49 AM)

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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Barakanaten]
    #13393188 -

Hey, Barakanaten...

Yeah, she's still going super strong, holding up well. The O-ring broke one and I had to crazy-glue it back together, but other than that, she's bomb proof, just keeps going. In fact, we built a second one for a friend, and it is even better, but the same basic design.

I never made a jacket. I stuck with tying wool blankets around it, which makes a huge difference. Wouldn't think of running it without this simple insulation.

A friend of mine borrowed it a while ago and almost burnt down his house. He positioned the burner and PC on a wooden deck. I've often done that too, but I always put reflective metal below it (cardboard with tinfoil works -- it reflects up all the heat). He didn't. The deck absorbed the heat, caught fire... then a whole bunch of stuff caught fire. Propane hoses, deck planks... he barely caught it in time. A mushroom grower's worst nightmare. You gotta be careful where you put a propane burner!

On another note, I've made a new sterilizer. This current PC, the subject of this thread, holds 44 quart jars, but could hold a few more if I shaved down the legs of the rack at the bottom.

The one I just made holds about 100.

It's a version of RR's 55-gallon drum sterilizer, but I use an old decommissioned freezer instead of a drum. I just pipe steam into the thing, and vent it out the other side. It holds a bit of pressure; not much, but enough. It's still in the testing phase. I'll post a thread on it one of these days!


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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Puma]
    #13396502 -

Glad to hear she's holding up:thumbup:

I really like the idea of doing 100 qt's at a time, but even more so I like the idea of needing to do 100 at a time:lol: ( I know I know you don't have to respond to that:grin:)

I love Fabrication and modding it has been a serious passion of mine since I was a child, I never took the the age old adage of "if it ain't broke don't fix it" or "don't reinvent the wheel"

I think its up for interpretation as to what "ain't broke" and how well or suited the "wheel" really is for any given application.


I think the spirit of invention is a contagious thing and perfectly suited for the shroomery and big ups to you Puma for bringing that spirit here and I enjoy this thread a great deal and hope to be seeing the new and improved PBAP model 100QT (Puma's Big Ass Pressure cooker 100qt:thumbup::grin:)


Check out my Grow!


--------------------
:mushroomgrow:New to cultivation? :sunny: Have a Question?:mushroomgrow:
Because AMU We Q&A Know
AMU Genetic Library
  Easy Felt
  AMU
:blueangel:
Official PNW Mushroom Hunting Season 2011
"...Though in all else he may be as Saintly as St. Francis, in the pursuit of these ends he is more
Satanic than Satan. He will betray his nearest and dearest without the slightest twitch of flesh or spirit.
He is amoral."
-Definition of a mushroom hunter by ~Angelo Pellegrini
:gallery: :omgawesome: :gallery:

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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Barakanaten]
    #14224798 -

lovin it!! 

so i'll throw out a simple, heavy but simple design,  how about some plate steel of proper thickness, get creative with some angle iron and bolt it together for peace of mind and extra reinforcement so if something fails far less things go flying around.
then weld up the corners/seams to seal it, make a door but have the bottom of the door 6" up to allow for water to sit in the bottom (wouldn't need 6" of it, but a nice easy measurement), and wham u have a nice big box PC, make some nice rolling racks, put needed amount of propane burners under it and BAM  see what fits. 

definitely not a mobile unit, but if u live in the country with a few acres, a friend with a flat bed, a metal yard with the needed plate steel or a friend in a steel shop seems doable.

drill, or torch for some of the holes, drill and tap for gauges and valves. somewhat basic welding. guys talented enough to make the tank could probably slap a box together in a heartbeat.    (co-workers used to build tube bumper air tanks for their trucks out of large iron pipe left over from jobs)

build it to run 20 psi, set up the insulation so that the side insulation has a small air gap, so when u remove the top section it allows convection current to cool all sides when only uncovering the top.  u could even section it off if u decided to make a big one, just in case a failure happened in part B it wouldn't have ALL the steam trying to get out, and the other section could finish its cycle at least & keep u working!! :smile:  or if u only needed to use part of it, wouldn't have to pressurize all of it.

put 4+ propane burners under it to get it up to temp in 20-60 mins, probably only need 1 or 2(even heat if its long) to maintain temp
crank out  X amount of bags/jars in  as little as 3 hours, plus cool down time.   

but hey, i am captain overkill :wink:

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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Unholyshite]
    #14224802 -

and hey, in the winter u could route the radiant heated air from it into ur house, shop, anywhere u wanted to run a lil ducting :wink:

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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Unholyshite]
    #14224829 -

If you're going to do this, could you get video of the test run and post it here?  Should be good for a few laughs.


--------------------
Chef:  Kids, what did I tell you about drugs?
Kids:  There's a time and a place for everything, and it's called college.

Check out my Only Fans page


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Re: Home-made, high-volume Pressure Cooker - New Pics [Re: Unholyshite]
    #14234514 -

jakubman1 said:
and hey, in the winter u could route the radiant heated air from it into ur house, shop, anywhere u wanted to run a lil ducting :wink:



Hey Jakubma, thanks for posting. First I have also considered plate steel for a big box, but the cost of steel and the weight it would come to, plus the work of building are the immediate concerns, especially given the abundance of cylindrical tanks... plus, round gaskets are easier. So, I've never pursued that idea, although in theory it might work. But why four sides -- why not six or eight? But then, why not just use a cylinder?

Check out our latest creation -- an expanded version of the PC in this thread. This thing -- here's the link -- should fit no fewer than 251 quart jars, or about 110 half-gallon jars. I just finished making it 2 weeks ago, and am still generating spawn and haven't loaded it yet. I'll also try filter-patch bags. With this new cylinder, I have no need to try plate steel, although it's an interesting idea. In using cylinders the biggest worry in terms of strength is the thickness of the lid, as that's what starts bulging at high pressure (as well, you need enough bolts to hold it down). Anyways, check it out and let me know what you think. In photos, it looks small, but the volume is almost twice that of a 55-gallon drum. If I ever want a bigger autoclave, I'd move to using bigger propane tank, as they're built to hold over 100 PSI, and they're easy to find. I'll post an update (to the other thread)when I finally load and test the new machine.


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