preasure cooker?

[lawls]

Someone should make/find a link on how to make a pressure cooker out of house hold everyday appliances...this would be alot of help to me...please and thank you

[Kleenotse]

You're not trying to grow SHROOMS are you? ARE YOU?

[Stock Market Anomalies]

This would be pretty hard I think.

You can get used ones cheap at thrift stores, often you'll need to buy a new seal or something for it.

[lawls]

Originally Posted by Kleenotse

You're not trying to grow SHROOMS are you? ARE YOU?

lmfao no.....my friend needs one and i was just seeing if i could get any replys for him

[mrparks]

You can do a lot with a pressure cooker.

Use it as part of a still, or to cook stuff. (bizarre, I know)

Also, I second what Mcrjtn said. Thrift store.

[a334jv2df]

IMO, sterilization is the single most important step in the shroom growing processes. Don't half ass it. You can get a large pressure cooker for cheap. I saw this fucking beast of a PC at a garage sale yesterday for $10. I doubt you could throw one together for 10x that amount.

Did I mention that pressure cookers are dangerous?

[Virus]

Originally Posted by lawls

Someone should make/find a link on how to make a pressure cooker out of house hold everyday appliances...this would be alot of help to me...please and thank you

How about buying one? It's cheaper and more efficient or is this another troll attempt considering the influx of trolling mudfarmers?

[Spatula Tzar]

An autoclave makes an excellent replacement for a pressure cooker.

Pressure cookers are only dangerous if poorly maintained. Make sure the regulator valve and burst disk gasket are clean, and you should have no problems.

[Mantikore]

Originally Posted by Spatula Tzar

An autoclave makes an excellent replacement for a pressure cooker.

at school we used a pressure cooker as an autoclave

Originally Posted by 1337

If you get an older one, it may not have a pressure lock, so you'd be able to open it while it's still pressurized. I've seen it happen. Cleaning food off of a popcorn ceiling is not fun.

youre supposed to pour cold water over the older models to lower the pressure before opening

[Dr rocker]

I just pull the weights off mine and wait for the pressure to go down. The way the lid is, it is impossible to remove the lid with pressure in it.

I normally dont go against people wanting to make things, but dont make a pressure cooker, you will just end up with a bomb.

Mine is 30+ years old and has had a few new seals. Buy a decent brand, and you will always be able to get new seals.

If money is tight, there are cheaper ways to steralise things. If thats what you want it for. Google methods for bottling tomatoes.

[Spatula Tzar]

The cheapest way to sterilize things is to steal some cobalt-60. Take a Geiger counter to a metal scrap yard and there's a good chance you'll find some, or a similar deadly isotope.

[monotoned]

Originally Posted by Spatula Tzar

An autoclave makes an excellent replacement for a pressure cooker.

How much does an autoclave usually cost?






You can sterilize stuff just by using a regular steamer, it just takes longer.
Steam the stuff for a longer period of time(forgot how long), let it cool down(overnight) for the spores you didn't kill to germinate then steam it again. Repeat process 2~3 times and you have equipment very close to the ones sterilized by a pressure cooker.

[Irukanji]

Stick glass jar in oven @ 200C for 30mins
Remove, and allow to cool(maybe 10-15 mins tops)
Stick what you need into the jar, and seal.

Done.

Try and reduce the amount of air that gets into the jar, so remove it and stick a lid on it asap, until it cools down then remove and fill and replace.

[Dread_Lord]

Take a pot. Put a lid on it. Clamp lid shut.
There you go.
http://missvickie.com/workshop/howdoesit.html

[Tybalt]

Originally Posted by monotoned

How much does an autoclave usually cost?






You can sterilize stuff just by using a regular steamer, it just takes longer.
Steam the stuff for a longer period of time(forgot how long), let it cool down(overnight) for the spores you didn't kill to germinate then steam it again. Repeat process 2~3 times and you have equipment very close to the ones sterilized by a pressure cooker.

There is no way in hell that you'ld sterilise with spores inside your substrate, if it doesn't kill spores, it won't kill contaminates, and if it does kill the contaminates, it will kill your spores.

SPORES GO IN AFTER

[Tybalt]

Originally Posted by 1337

I'm pretty sure by "stuff" he meant the jars, lids, and rings. He just posted a method of sterilizing the kit without a pressure cooker.

He said 'let it cool down for the spores which you haven't killed off to germinate'.


Pretty retarded idea.

[Tybalt]

Originally Posted by 1337

Yes, as in foreign spores, mold for example.

I was just making sure that the OP had the best information available.

[Tybalt]

Originally Posted by 1337

Well I'm not saying that I interpreted it right, or that monotoned isn't a complete retard. Either way, it doesn't seem like the most efficient method of sterilization, but it's a better idea than nigger rigging your own pressure cooker like the OP wanted.

Definitely right on that one.

[monotoned]

First off, I'm a she.

Second, I meant the kit or the instruments, def. not the substrate.

Thirdly, I think I said something along the lines "it can also be done like this", I've never tried it myself since I never had to, but just a suggestion for the OP if sterilization is what OP wanted.

Last, about the spores. Assuming you know about spores, you should already know that under normal conditions you can't kill all of them by just cooking them. They are much easier to kill once they germinated. Steaming it once will get rid of part of the spores, allowing it to cool (under sterile environment) and letting it sit overnight giving it time for the ones you haven't killed to germinate <=this is what I meant) then steaming it again to kill the ones that have germinated. Repeating this process will lower the risk of contamination significantly (of course under sterile environment).

[Sentinel owl]

Originally Posted by Spatula Tzar

The cheapest way to sterilize things is to steal some cobalt-60. Take a Geiger counter to a metal scrap yard and there's a good chance you'll find some, or a similar deadly isotope.

Cobalt-60 in a scrapyard? No way. What in the world has Co-60 that would find its way to a junkyard?

[Sentinel owl]

Originally Posted by monotoned

First off, I'm a she.

Second, I meant the kit or the instruments, def. not the substrate.

Thirdly, I think I said something along the lines "it can also be done like this", I've never tried it myself since I never had to, but just a suggestion for the OP if sterilization is what OP wanted.

Last, about the spores. Assuming you know about spores, you should already know that under normal conditions you can't kill all of them by just cooking them. They are much easier to kill once they germinated. Steaming it once will get rid of part of the spores, allowing it to cool (under sterile environment) and letting it sit overnight giving it time for the ones you haven't killed to germinate <=this is what I meant) then steaming it again to kill the ones that have germinated. Repeating this process will lower the risk of contamination significantly (of course under sterile environment).

Erm, I may just be a chemist unschooled in the ways of mycology, but why not sterilize your container chemically? No silly mushroom spore could stand up to an assault on all fronts by HCl or hydrogen peroxide.

[No One In Particular]

Wow. We have some wrong information floating around here.

http://www.mushroomvideos.com/BRF-Pf-Tek

I like to pre-sterilize my jars first.
Make your substrate
Put it in the jars
Cover the jars with tinfoil
Put in pressure cooker
DO NOT INJECT THEM YET! THE SPORES CANNOT SURVIVE THE PC!
Let the jars cool 5 hours min.
Get them out of the PC and put the lids on the jars
The lids should have the holes in them already
Sterilize your workspace, syringe, hands, air, etc
inject through the holes and poke through the tin foil
enjoy

if you get a little paranoid of contams, cover the holes with masking tape or coffee filtr once you've innoc'd.

[Dr rocker]

Originally Posted by Sentinel owl

Cobalt-60 in a scrapyard? No way. What in the world has Co-60 that would find its way to a junkyard?

Not a lot now, but in the past a lot of medical devices (mostly steralization stuff), but with this stuff in the past being recylcled and cobalt being an ingrediant in different types of steel, I reckon if you melted all of the steel in an average scrap yard and controlled its cooling, did a bit of science and had a bit of luck, you could get a gram or so of the stuff.

Unlikely, but have you read 'On The Beach' by Neville Shute, a '50s book - it tells of a post nuclear society where the chinese use cobalt warheads due to its short life so they can wait until everyone dies and occupy the land.

What country was it that buys hella load of scrap metal?

Edit: http://en.wikipedia.org/wiki/On_the_Beach_(novel)

[Spatula Tzar]

Co-60 from medical devices has been mistakenly disposed of as ordinary scrap metal. I'm sure it still happens occasionally.

For chemical sterilization, ethylene oxide is commonly used in the medical industry as an alternative to radiation or autoclaving. Hydrochloric acid isn't enough to sterilize many things.

[Sentinel owl]

Originally Posted by Spatula Tzar

Co-60 from medical devices has been mistakenly disposed of as ordinary scrap metal. I'm sure it still happens occasionally.

For chemical sterilization, ethylene oxide is commonly used in the medical industry as an alternative to radiation or autoclaving. Hydrochloric acid isn't enough to sterilize many things.

Whaaaa? You're telling me that there are things that can resist 38% HCl? Cool beans.

Way cool on the Co-60. If I ever get me a geiger counter, I just may venture over to a scrap yard (with a lead box)