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djsethall
Dr. Justy



Registered: 01/07/08
Posts: 88
Loc: PNW
Last seen: 2 years, 11 months
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PC Times Table
#7956333 - 01/30/08 04:21 PM (16 years, 2 days ago) |
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Can we have like a table or something for PC times???
-------------------- Any posts made by me are purely fictional in nature and by no means is anything I say to be taken seriously. I do not grow or condone the growing of anything not legal. Any and all pictures I post are pictures wideley available on the internet and any discussions I am involved in are purely hypothetical or are commentary in nature and should not constitute advice or be considered advice to assist in activities that are deemed illegal.
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endepth
The world remains ever the same.


Registered: 12/25/07
Posts: 647
Loc: Cloud 9
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Re: PC Times Table [Re: djsethall]
#7956385 - 01/30/08 04:29 PM (16 years, 2 days ago) |
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Why? An hour to 90 min is good for just about anything. 
Edit: substrate wise that is.
-------------------- Being normal is nothing to aspire to. It is something to get away from.
Edited by endepth (01/30/08 04:30 PM)
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tahoe
Noob Slayer



Registered: 11/26/03
Posts: 6,274
Loc: N38.93829W119.98108
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Re: PC Times Table [Re: endepth]
#7956874 - 01/30/08 05:48 PM (16 years, 2 days ago) |
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20 mins to an hour is good for everything.
20 mins for pf cakes and lc's
30 mins for pf cakes with wood chips instead of verm
45 mins for simmered birdseed
1 hour for simmered rye
Done, lock thread and make this a sticky
-------------------- Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.
My Legacy https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987 Teh=The I need to proofread
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HybridprX
Biodegrader of coir



Registered: 01/29/08 
Posts: 2,588
Loc: Canada
Last seen: 6 years, 4 months
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Re: PC Times Table [Re: tahoe]
#7956942 - 01/30/08 06:00 PM (16 years, 2 days ago) |
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Deleted. puppet banned.
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Edited by RogerRabbit (01/30/08 07:56 PM)
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tahoe
Noob Slayer



Registered: 11/26/03
Posts: 6,274
Loc: N38.93829W119.98108
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Re: PC Times Table [Re: HybridprX]
#7957083 - 01/30/08 06:20 PM (16 years, 2 days ago) |
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okay 
so who is this puppet??
-------------------- Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.
My Legacy https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987 Teh=The I need to proofread
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tahoe
Noob Slayer



Registered: 11/26/03
Posts: 6,274
Loc: N38.93829W119.98108
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Re: PC Times Table [Re: HybridprX]
#7957103 - 01/30/08 06:23 PM (16 years, 2 days ago) |
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Quote:
HybridprX said: No....
This is why there is so much misleading information on this site.
(ass)uming one knows how to properly use a pressure cooker the PC time table would be...
15psi
pf cakes = 45-60 minutes.
agar = 45 minutes
Liquid cultures (depending on nutrient media) 20-45 minutes
Rye = soaked for 36hours pressure cook for 90 min, re-soak for 12 hours then re-PC for 90 minutes again.
okay so how about pf cakes with out a p-cooker?? The directions call for 60 mins.
My bottle of agar from fungiperfecti call for 25 minutes
Rye?? soak for 36 hours then pc for 90 mins and then soak again for 12 hours and pc again for 90 mins??
Paul stamets says to pc rye for 60 mins for quart jars and 90mins for 1/2 gallon jars.
You are neat. I have someone who will campare your ip addres with others and we will find out who you are
-------------------- Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.
My Legacy https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987 Teh=The I need to proofread
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musher_420
Stranger

Registered: 08/01/05
Posts: 2,691
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Re: PC Times Table [Re: djsethall]
#7957189 - 01/30/08 06:43 PM (16 years, 2 days ago) |
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You could search the forums for a while and try to come up with a consensus... look for opinions from the veterans like RR, Roadkill, Agar.
You have to remember that the time required varies on how much pressure people are using and what their methods are as far as soaking even luck plays a factor.
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whereismymind
they keepcoming!



Registered: 04/12/04
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Re: PC Times Table [Re: HybridprX]
#7957200 - 01/30/08 06:45 PM (16 years, 2 days ago) |
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the method he is telling was a thread opened today , but dear friend let me tell you that is not the way people do it , if you soak cook rye and soak again and cook , you ll be called crazy , anyway dont tell that to anyone else =) Peace
-------------------- In my own summer , there is no crowd in the streets and no sun...
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djsethall
Dr. Justy



Registered: 01/07/08
Posts: 88
Loc: PNW
Last seen: 2 years, 11 months
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I am looking for a consenus from the vets. I am looking for a table that has like jar size or bag size running from the top down and the substrate running left to right with times for PC in the squares that intersect the size/substrate lines. I want the vets to come up with it so we don't have a bunch of noob answers.
-------------------- Any posts made by me are purely fictional in nature and by no means is anything I say to be taken seriously. I do not grow or condone the growing of anything not legal. Any and all pictures I post are pictures wideley available on the internet and any discussions I am involved in are purely hypothetical or are commentary in nature and should not constitute advice or be considered advice to assist in activities that are deemed illegal.
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whereismymind
they keepcoming!



Registered: 04/12/04
Posts: 365
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Re: PC Times Table [Re: djsethall]
#7957259 - 01/30/08 07:01 PM (16 years, 2 days ago) |
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actually im not sure of the times also , because my pressure cooker is smaller im using 3/4 quart jars at a time and they are long jars , so im guessing for my jars to reach the same temperature and cook at that temp. for a certain tiem i need less time then 1 quart jars , but yes if there was a table of substrates / jar size and this table could be for 15 psi 12 psi and 10 psi it would be nice =)
-------------------- In my own summer , there is no crowd in the streets and no sun...
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musher_420
Stranger

Registered: 08/01/05
Posts: 2,691
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Re: PC Times Table [Re: djsethall]
#7957311 - 01/30/08 07:12 PM (16 years, 2 days ago) |
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It would be a nice tool, but it would get complected. The relationship for sterilization is heat and time. Water at 15psi I believe is about 121 degrees Celsius. At these conditions I believe it should kill just about anything except some endospore within 15 minutes.
Because we are dealing with a semi-sealed quart jar full of hydrated grain it takes much longer for the center of the jar to reach these temps. That's why it can take 2h sometimes for a full PC of quart jars and even longer when using bulk substrates in bags.
A chart would only be useful if you were using the exact same volumes in the same containers and PC.. to many variables.
But you can the general idea and go from there to find out what works for you.
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whereismymind
they keepcoming!



Registered: 04/12/04
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so as i told a table like this could be appreciated :
Jar size / Time for 15 psi for wbs Jar Size / Time for 12 psi for wbs Jar size / Time for 10 psi wbs
Jar size / Time for 15 psi rye Jar size / Time for 12 psi rye Jar size / Time for 10 psi rye
-------------------- In my own summer , there is no crowd in the streets and no sun...
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musher_420
Stranger

Registered: 08/01/05
Posts: 2,691
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I always found how full my PC was of jars and how full I filled them with grain also would effect how long I needed to PC tho...
Same with LC and Agar. LC is touchy if you want to avoid carmalization.
But I guess there could be a guideline people could follow to know they were in the right ball park.
Maybe make a set of polls? or a post that people could copy and paste then fill in the blanks? Problem is unless people are using a gauged PC they don't really know what pressure they are running at like with rockers... and even with a gauge is it accurate.. are they running it exactly at 15psi the whole time?
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musher_420
Stranger

Registered: 08/01/05
Posts: 2,691
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PC- Mirro, 21qt, rocker weight
Pressure up procedure: The weight was left off until the vent started to steam to release air pockets and when the rocker was in place it was only gently rocking every few seconds not a violent rattle.
Times: Time starts only after the PC is at operating pressure.
10 quart jars, 2/3 full of well rinsed and soaked WBS = 90minutes
3 or 4 LCs in pint jars 1/2 full = 25 minutes (water boiled when mixing LC)
500mL agar solution in quart jar =35 minutes
Tools, syringes wrapped in aluminum foil = 20 minutes
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
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Loc: Seattle
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For larger jars or substrate bags, I've got a little different technique to know how long.
The bacterial endospores in grains need about 30 minutes @ 15 psi, at sea level, to ensure they're killed off. That does not mean 30 minutes from the time your PC reaches pressure, but 30 minutes from the time the interior of the jar or bag of grains reaches full temperature.
The way to achieve this is to always use the minimum stove setting that will hold 15 psi. If your PC rattles at 15, then use 14 so it doesn't rattle at all. Now, you'll notice after pressure is reached, for about 1/2 an hour or so, you'll have to constantly turn down the stove in order to prevent the weight rattling. Once you reach the point where you don't need to reduce the stove burner anymore, your substrate is fully heated all the way through. At this point, allow 1/2 hour to ensure the bacterial endospores in the very center of the substrate bag are killed off.
If you're above 5,000 feet elevation, double the above time to one hour. 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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djsethall
Dr. Justy



Registered: 01/07/08
Posts: 88
Loc: PNW
Last seen: 2 years, 11 months
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Wow, good explanation, I am looking for something like this, maybe have one for each common psi setting?
-------------------- Any posts made by me are purely fictional in nature and by no means is anything I say to be taken seriously. I do not grow or condone the growing of anything not legal. Any and all pictures I post are pictures wideley available on the internet and any discussions I am involved in are purely hypothetical or are commentary in nature and should not constitute advice or be considered advice to assist in activities that are deemed illegal.
Edited by djsethall (01/30/08 08:45 PM)
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