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VisionsToReality
RIBBONS
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Can't you just oven pasteurize at 160F in the oven?
#7570044 - 10/28/07 03:46 PM (16 years, 5 months ago) |
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I see all these things telling me to turn the oven up over 160F to some random number, then come back, check the temp, and THEN turn the temp down.
What's the point of doing that? Why not just plop the thing in the oven, turn the oven to 160F, and give it enough time so that the inside reaches 160F? Seems a lot easier to me.
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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The shroomy 1
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7570120 - 10/28/07 04:07 PM (16 years, 5 months ago) |
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That would be the proper way to do it in my opinion and personal experience with the oven tek. Some people are not patient enough to wait! I put around 8 5lb bags in the oven with plenty of room between them and set the oven to 170F, (That's as low as my oven goes). I set it for around 3 hours. Three hours later, I turn the oven off and let the bags slowly cool down on their own, (about another 2 hours). So there you have it, 40lbs of bulk substrate pasteurized in a total of 5 hours.
-------------------- AMU Q&A thread.
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zathan
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: The shroomy 1]
#7570733 - 10/28/07 07:46 PM (16 years, 5 months ago) |
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From my culinary experience in roasting large objects in the oven, at only 160f, it would take almost half a day to get the core temperatures up to 160f.
You can speed things up by hydrating with boiling water, but I bake at 250-300 to achieve the proper core temperature. I also use a Taylor digital oven thermometer (same one Alton Brown uses on Good Eats).
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Caribou_Lou
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: zathan]
#7571097 - 10/28/07 09:25 PM (16 years, 5 months ago) |
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There's a big difference between dry heat and wet heat
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The shroomy 1
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: zathan]
#7571169 - 10/28/07 09:45 PM (16 years, 5 months ago) |
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Quote:
zathan said: From my culinary experience in roasting large objects in the oven, at only 160f, it would take almost half a day to get the core temperatures up to 160f.
You can speed things up by hydrating with boiling water, but I bake at 250-300 to achieve the proper core temperature. I also use a Taylor digital oven thermometer (same one Alton Brown uses on Good Eats).
Good point! I guess I didn't take into account the fact that I do the substrate mixing, bagging, and pasteurizing all in the same day. I hydrate my coir with boiling water, so by the time I mix in everything and start weighing them out into 5lb bags the shit is still pretty damn warm. I am a restaurant manager and have a personal deep probe meat thermometer. I insert the 4" probe in the center bag. I guess I never thought of someone starting from room temperature and raising it to 160+F.
-------------------- AMU Q&A thread.
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The shroomy 1
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: zathan]
#7571232 - 10/28/07 10:02 PM (16 years, 5 months ago) |
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Quote:
zathan said: From my culinary experience in roasting large objects in the oven, at only 160f, it would take almost half a day to get the core temperatures up to 160f.
You can speed things up by hydrating with boiling water, but I bake at 250-300 to achieve the proper core temperature. I also use a Taylor digital oven thermometer (same one Alton Brown uses on Good Eats).
Please take into consideration that we're not talking about your average 20lb roast here! LOL! Cooking at a constant oven temperature of 300°F (160°C), a 5- to 8-lb standing rib roast will take 18-20 minutes per pound. At that rate, yes a twenty pound cut of meat cooking at 170F would take half a day to reach temperature, (hell it would take about 7 hrs at 300F). BUT, I'm talking about 5lb bags and there is a huge difference in density between meat,(muscle fiber) and a various mix of mostly straw, dung, coir, worm castings, etc. etc. Don't get me wrong, but I think that was comparing apples and oranges.
-------------------- AMU Q&A thread.
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: The shroomy 1]
#7571803 - 10/29/07 03:38 AM (16 years, 5 months ago) |
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hmmm ok so if boiling h2o is used to heat it up to begin with, you CAN just set it to 170 or 160F and it won't take too long to heat up the core?
i always wonder, if you turn the oven to 300, then the outside contents of your bag will reach 300F....and that is bad.
this is why i thought itd be good to avoid high temps and just do 170F.
that, and its a pain in the butt to check on an oven back with a thermometor. id rather just set it and forget it.
im still not clear as to whether or not its ok to do what im sayin. is it ok as long as you use boiling water to begin with?
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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CaptainLinger
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7571817 - 10/29/07 03:51 AM (16 years, 5 months ago) |
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Quote:
hmmm ok so if boiling h2o is used to heat it up to begin with
...if you do that it will likely be higher than 160 to begin with. Yes, that method works fine, it just requires constant monitoring.
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RogerRabbit
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7572204 - 10/29/07 08:11 AM (16 years, 5 months ago) |
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Ovens are not suitable for pasteurization. At 160F, it would take 12 hours or longer for the inside of a 5 pound substrate bag to reach 140F. You're only supposed to pasterurize for an hour, to an hour and a half maximum, so by the time your substrate or casing material reached the right temp in the center, the outside is partially sterilized. Use water to pasteurize. Water is a much better heat conductor than air, which can only transfer the heat by convection. RR
-------------------- 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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CaptainLinger
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: RogerRabbit]
#7572734 - 10/29/07 11:47 AM (16 years, 5 months ago) |
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Quote:
Ovens are not suitable for pasteurization. At 160F, it would take 12 hours or longer for the inside of a 5 pound substrate bag to reach 140F. You're only supposed to pasterurize for an hour, to an hour and a half maximum,
I disagree. I hydrate with 130F water, then squeeze (painfully) to field capacity, and insert two remote thermometers. With the oven at 220 or so, the outside of each bag only gets to about 180 by the end (not for the whole time), the inside rests at 150. The entire process takes about 2 1/2 hours. It takes 12 hours or longer if you're cooking a dense piece of room-temperature meat.
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7575827 - 10/30/07 09:33 AM (16 years, 5 months ago) |
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hmmmmmmmmmmmmmmmmmmmmmmmmmmmmm now i have to decide which method to use...
was very excited to possibly NOT have to deal with a soaking slop ball of substrate to boil.
RR when you say water pastuerization, do you mean an oven bag (with the opening above the water) in a pot of water?
Or do you mean a pillowcase soaked in water that you must dry?
Can one just put an oven bag (with field capacity substrate inside) in a pot of water and monitor temperature?
THANKS! This must be decided quickly!!
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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CaptainLinger
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7575842 - 10/30/07 09:37 AM (16 years, 5 months ago) |
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RR does his pasteurization in a pressure cooker; all the substrate goes into quart mason jars, and gets boiled in the PC until the center reaches 160F. It's highly reliable, but a major pain in the ass.
The pillowcase crap is...crap. It's not often mentioned that it's only helpful with composted/cow manure. You can also do wet pasteurization by taking water up to 160-170F, hydrating manure with it, resting for 2 hours, and squeezing to field capacity.
You can certainly put an oven bag in a pot of water. It will work quicker and more reliably. That's just a mess though
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7575857 - 10/30/07 09:42 AM (16 years, 5 months ago) |
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ok
well since oven pasteurization is questionable in its reliability (even though it works for some) then I'd like to avoid that
Which leaves the next best option (I think) of putting the oven bag in a pot of water (but with the opening NOT submerged). This seems like a non-messy way of doing things reliably.
Anything involving hydrating the substrate more than field capacity is ridiculous to me and very messy and time consuming.
On the topic of pressure cooking to pasteurize - if one only has a rocker type pressure cooker, how do you ensure the temperature reaches 160 and stays at 160F?
By the way: 160F is the correct pasteurization temp, right? Or is there a temp that's more ideal?
Thanks so much
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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RogerRabbit
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7575871 - 10/30/07 09:46 AM (16 years, 5 months ago) |
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Quote:
It's highly reliable, but a major pain in the ass
WTF is a pain in the ass about it? First, the substrate/casing is heated to 140F, not 160F before the stove is shut off. Second, it's the easiest, least messy way to pasteurize home-grower amounts of substrate or casing material.
One thing that working 12 hour days in my day job, then coming home and trying to grow mushrooms, help out here, and do videos at the same time has taught me, is to use time wisely. I know of no quicker way to accurately maintain a temperature of 140F to 160F for one hour, then the method I teach. RR
-------------------- 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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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7575881 - 10/30/07 09:50 AM (16 years, 5 months ago) |
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well you dont want to PRESSURE COOK IT.. i use the pressure cooker cause its quite large and can hold up to around 10 lbs of substrate at a time.. which is enough for me, at least..
i posted a couple days ago not to use Oven Bags with water pasteurization.. last time i did it.. the bag melted somehow and i had a mess all over the kitchen... weak..
you can use mason jars, or order some nice autoclavable spawn bags to boil them in.. mind you.. 160-170 degrees is not boiling temperature so you have to get the settings just right. i use two thermometers.. one keeping track of the water temp, and the other keeping track of the center of the bag.
it still takes at least an hour to heat the inside of the bag for me.. my solution to that is put the pressure cooker lid on, dont tighten it, and leave the weight off.. that way steam can build. and steam, i think, penetrates substrate a lot more efficiently.
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CaptainLinger
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7575889 - 10/30/07 09:52 AM (16 years, 5 months ago) |
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Quote:
WTF is a pain in the ass about it?
Just the filling of each separate jar with spawn, and subsequently washing all those out. I often just hydrate with 160-165+ in an 8gal brew kettle, which retains the heat just fine for a few hours.
Quote:
last time i did it.. the bag melted somehow and i had a mess all over the kitchen... weak..
One might note that the bags are made for oven roasting turkeys at 400+ degrees. Don't expose it to bare flame next time.
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7575916 - 10/30/07 10:02 AM (16 years, 5 months ago) |
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no flame exposed... bag was on a towel which was on a trivet... i know.. it didnt make sense to me either.
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: RogerRabbit]
#7575922 - 10/30/07 10:05 AM (16 years, 5 months ago) |
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Quote:
RogerRabbit said:
Quote:
It's highly reliable, but a major pain in the ass
WTF is a pain in the ass about it? First, the substrate/casing is heated to 140F, not 160F before the stove is shut off. Second, it's the easiest, least messy way to pasteurize home-grower amounts of substrate or casing material.
One thing that working 12 hour days in my day job, then coming home and trying to grow mushrooms, help out here, and do videos at the same time has taught me, is to use time wisely. I know of no quicker way to accurately maintain a temperature of 140F to 160F for one hour, then the method I teach. RR
Wait, RR...is it possible to do this using a "rocker" pressure cooker with no gauge? How do you know what temp you're at when using the pressure cooker with no gauge? Do you just do a certain psi (5,10,15) for a certain amount of time? Thank you
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CaptainLinger
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7575951 - 10/30/07 10:14 AM (16 years, 5 months ago) |
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He boils it in the PC; he does not pressurize it.
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7575956 - 10/30/07 10:17 AM (16 years, 5 months ago) |
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Quote:
This guy said: well you dont want to PRESSURE COOK IT.. i use the pressure cooker cause its quite large and can hold up to around 10 lbs of substrate at a time.. which is enough for me, at least..
i posted a couple days ago not to use Oven Bags with water pasteurization.. last time i did it.. the bag melted somehow and i had a mess all over the kitchen... weak..
you can use mason jars, or order some nice autoclavable spawn bags to boil them in.. mind you.. 160-170 degrees is not boiling temperature so you have to get the settings just right. i use two thermometers.. one keeping track of the water temp, and the other keeping track of the center of the bag.
it still takes at least an hour to heat the inside of the bag for me.. my solution to that is put the pressure cooker lid on, dont tighten it, and leave the weight off.. that way steam can build. and steam, i think, penetrates substrate a lot more efficiently.
Must...read...posts...thoroughly...
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7575957 - 10/30/07 10:17 AM (16 years, 5 months ago) |
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Oh. So basically all he does is wet the substrate to field capacity, put into jars, HEAT the water to 160 or 170F.....and that's it?
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7575975 - 10/30/07 10:21 AM (16 years, 5 months ago) |
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thats it.. careful not to go above 180. 155 to be safe.
but i got my shit down to a science so i keep it 160-170.
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7575986 - 10/30/07 10:26 AM (16 years, 5 months ago) |
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ok so the water should be covering almost the entire jar, then?
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7575999 - 10/30/07 10:28 AM (16 years, 5 months ago) |
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yea.. they'll most likely want to float.. put a plate with a brick over it or something to keep em' down
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576007 - 10/30/07 10:30 AM (16 years, 5 months ago) |
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i've never used jars for pasteurized using jars.. hopefully someone with more accurate information can help ya on that though.. just a little common sense and some practice and you'll look back thinking.. "damn did i really have to ask these questions?"
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576038 - 10/30/07 10:36 AM (16 years, 5 months ago) |
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yeah even ask i ask them they seem stupid, makes sense to have them fully submerged if possible, i would think. as long as the lids are tight and there are no holes on them that is..problem is, they all have holes...
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576066 - 10/30/07 10:43 AM (16 years, 5 months ago) |
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thats fine.. you want steam to be able to escape.. build up of steam cant possibly be safe in a glass jar..
its okay the ask questions...
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576081 - 10/30/07 10:49 AM (16 years, 5 months ago) |
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yeah but these jars are made for being closed in a pressurized system i thought. or does the external pressure in a PCer work against the internal pressure?
Is it safe to have 100% sealed canning jars in water with 170F temps? Can anyone assure me on this? That's the one thing I'm not sure about..
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576086 - 10/30/07 10:50 AM (16 years, 5 months ago) |
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the internal pressure is equal with the outer pressure of the jars INSIDE the pressure cooker.. its the PRESSURE COOKER itself that is able to withstand 15 psi.. not the jars itself.
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576111 - 10/30/07 10:58 AM (16 years, 5 months ago) |
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yes what im sayin is the PC has pressure which is external to the jars.
and the jars have pressure that is internal but is cancelled out by the external pressure being induced by the pressure cooker on the jars
but without pressure in the PCer and just with jars sealed heating in water in atmospheric pressure I wonder if they would explode or what...my instinct says they WOULD ......
if anyone...cough RR...who has experience with this could tell me that'd be great. I can't proceed without knowing whether or not this is safe with sealed jars
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576119 - 10/30/07 10:59 AM (16 years, 5 months ago) |
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Quote:
VisionsToReality said:
Is it safe to have 100% sealed canning jars in water with 170F temps? Can anyone assure me on this? That's the one thing I'm not sure about..
a safe bet would to just cover the jars with some foil around the top of the jar without the lid.
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576129 - 10/30/07 11:01 AM (16 years, 5 months ago) |
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Quote:
VisionsToReality said:
but without pressure in the PCer and just with jars sealed heating in water in atmospheric pressure I wonder if they would explode or what...my instinct says they WOULD ......
u just answered u'r own question.. prolly not EXPLODE.. but will definately crack..
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576169 - 10/30/07 11:08 AM (16 years, 5 months ago) |
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yeah
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576179 - 10/30/07 11:12 AM (16 years, 5 months ago) |
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I just dont see the point of doing jars. Why not a big oven bag or multiple oven bags in a pot of water? Seems like jars are a total pain in the ASS compared to just a bag
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576211 - 10/30/07 11:19 AM (16 years, 5 months ago) |
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576230 - 10/30/07 11:22 AM (16 years, 5 months ago) |
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here's what happens when u have unequal pressures in a sealed container...
or course.. with steam building in the inside.. it will be opposite reaction
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576231 - 10/30/07 11:22 AM (16 years, 5 months ago) |
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Yeah I thought others have done this many times with good experiences though..
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7576236 - 10/30/07 11:23 AM (16 years, 5 months ago) |
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maybe i have bad luck? bleh
get u'r hands wet.. thats the best way to learn
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CaptainLinger
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576368 - 10/30/07 11:51 AM (16 years, 5 months ago) |
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This entire thread has become nonsensical. Oven bags are designed, intended for high temperatures. I use them to pasteurize both in ovens, and water vats.
Reading, it seems like RR's thinking behind the jars is the small size, and no doubt the easy thermal transfer from the glass. 1 qt jars will pasteurize much, much faster than even a small 2-gallon oven bag. If you have the time to monitor and wait and don't want the effort, I'd advise using oven bags...otherwise RR's method gets the job done in what I'd expect to be the fastest overall.
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This guy
Stranger
Registered: 07/28/07
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7576400 - 10/30/07 12:02 PM (16 years, 5 months ago) |
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i dont think this thread is absurd in anyway.. questions are being answered... at least to the best of ability. isnt that what this board is for? yes quart jars are perfect for a smaller, quicker way to get to the finish line. but like you said, oven bags do work.. i must have had a defected bag. but other than that i usually just use the spawn bags with the filter patch on them..
IMO if you want things done FAST.. you picked the wrong hobby. but yea glass is a great thermal conductor.
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VisionsToReality
RIBBONS
Registered: 09/22/07
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7576422 - 10/30/07 12:08 PM (16 years, 5 months ago) |
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this hobby is so much faster than others...just a pain in the a s s over others.
thanks for helping, everyone.
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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VisionsToReality
RIBBONS
Registered: 09/22/07
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7578497 - 10/30/07 09:27 PM (16 years, 5 months ago) |
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tried the oven bag in large pot technique
after standing around for 1 hour with water at 160 the core is only 120 or so.
FUCK THIS.
Quitting, resting, relaxing, getting more JARS and will never do the oven bag technique again, most likely. Jars are so much easier
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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The shroomy 1
Luminous beings surround me
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7578601 - 10/30/07 09:51 PM (16 years, 5 months ago) |
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Quote:
VisionsToReality said:
Quote:
RogerRabbit said:
Quote:
It's highly reliable, but a major pain in the ass
WTF is a pain in the ass about it? First, the substrate/casing is heated to 140F, not 160F before the stove is shut off. Second, it's the easiest, least messy way to pasteurize home-grower amounts of substrate or casing material.
One thing that working 12 hour days in my day job, then coming home and trying to grow mushrooms, help out here, and do videos at the same time has taught me, is to use time wisely. I know of no quicker way to accurately maintain a temperature of 140F to 160F for one hour, then the method I teach. RR
Wait, RR...is it possible to do this using a "rocker" pressure cooker with no gauge? How do you know what temp you're at when using the pressure cooker with no gauge? Do you just do a certain psi (5,10,15) for a certain amount of time? Thank you
I wouldn't pressurize, even at 1 psi it would translate to 212F
Per Paul Stamets (The Mushroom Cultivator) the relatinship of pressure and terperature at constant volume is as follows. Pressure.....Temperature F. 1............212 3............220 5............228 10...........240 15...........250 20...........259 25...........267
This is at Sea Level
-------------------- AMU Q&A thread.
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CaptainLinger
A Fungus Amongus
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: The shroomy 1]
#7578720 - 10/30/07 10:22 PM (16 years, 5 months ago) |
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Yeah; as mentioned before, you really want to start out with 130F+ water. Otherwise...you have some wait in store. How much are you pasteurizing at once?
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: CaptainLinger]
#7579387 - 10/31/07 04:19 AM (16 years, 5 months ago) |
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Enough for a monotub at a time (less at a time, unfortunately) Used probably 5-10 pounds this first time
Just going to do jars. Standing around monitering the core temp and worrying about contams getting into not-so-sealed oven bag just pisses me off and opens up possibilities for error. fed up with the hassle of ovenbags..fuckit
and theres no way i can add 140F water to a half a rubbermaid's worth of hpoo and get it hydrated correctly. I have to add it, mix it, then squeeze it and I aint doin that in 140F temps.
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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This guy
Stranger
Registered: 07/28/07
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7579948 - 10/31/07 09:33 AM (16 years, 5 months ago) |
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Quote:
VisionsToReality said: tried the oven bag in large pot technique
after standing around for 1 hour with water at 160 the core is only 120 or so.
FUCK THIS.
Quitting, resting, relaxing, getting more JARS and will never do the oven bag technique again, most likely. Jars are so much easier
wow you're really making this out to be a lot more difficult than it really is...
while pasteurizing you don thave to be 100% sterile.. or else you would be better off sterilizing... just put it in the pan and forget about it for 2 or 3 hours.. sheesh. you can handle the 90 min wait to pressure cook grains.. but cant go the extra mile to pasteurize bulk? thats retarded. IMO you should just give up the bulk and just case your colonized grains.
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This guy
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: VisionsToReality]
#7579950 - 10/31/07 09:34 AM (16 years, 5 months ago) |
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Quote:
VisionsToReality said: and theres no way i can add 140F water to a half a rubbermaid's worth of hpoo and get it hydrated correctly. I have to add it, mix it, then squeeze it and I aint doin that in 140F temps.
its called trial and error.. and a little technique we call measuring! man.. AHH!
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VisionsToReality
RIBBONS
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#7580085 - 10/31/07 10:28 AM (16 years, 5 months ago) |
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- For hydrating with scalding water, I don't wanna deal with it - I'm not going to be having the same texture/structure substrate every time because of differing sources or recipes or differing components (even for the exact same recipe...ex: aged horse manure vs. newer manure is diff. in struc/texture)... etc..so the amount will not be the same for each substrate.
-Since I don't wanna deal with that this first time I was monitoring the core temp (pain in the ass)
If anything, PCing is easier than this bullshit of oven bags in water.
After doing this I've realized jars ARE better, do save time, and don't make you worry about having an open oven bag
I like to do things knowing they work and do em right...I don't wanna second guess on whether or not my core temp reached this or that, or if the outside is partially sterilized. Plus I find jars just easier. To each his own, and fuck ovenbags in pots from now on...sheesh!
Not using hot water was the fuckup - but I can't be dealing with hydrating with hot water, just is way too much of a pain in the ass to me!
Thanks RR.
And thanks everyone else for your persistant help, really appreciate it as always
-------------------- Life is one big road with lots of signs, So when you're ridin' through the ruts, Don't you complicate your mind. Flee from hate, mischief and jealousy Don't bury your thoughts, Put your vision to reality, yeah!
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magic420
walkaboot
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Re: Can't you just oven pasteurize at 160F in the oven? [Re: This guy]
#19903068 - 04/26/14 12:39 PM (9 years, 11 months ago) |
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vacuum bags are pulse friendly and can handle boiling.
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