|
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
does anybody vent their agar?
#24251633 - 04/17/17 01:24 PM (7 years, 8 months ago) |
|
|
do you vent your PC when cooking agar?
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
Re: does anybody vent their agar? [Re: tryptkaloids]
#24251639 - 04/17/17 01:25 PM (7 years, 8 months ago) |
|
|
if you've done both have you noticed a difference?
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
JewishLawyer
Gypsy Witch



Registered: 02/22/17
Posts: 339
Loc: Iraniganistan
|
Re: does anybody vent their agar? [Re: tryptkaloids]
#24251644 - 04/17/17 01:26 PM (7 years, 8 months ago) |
|
|
by vent i'm assuming you mean put the lid on without the weight and let it vent 10 minutes to ensure proper pressurization?
I do it regardless of what i'm PCing, it keeps the temperatures stable
-------------------- Niffla said:
my dog ate some of my peyote, unlocked the secrets of the universe and now has tenure at Yale
|
Morel Guy
Stranger


Registered: 01/23/13
Posts: 15,577
Last seen: 5 years, 19 days
|
Re: does anybody vent their agar? [Re: JewishLawyer]
#24251678 - 04/17/17 01:39 PM (7 years, 8 months ago) |
|
|
Honestly, a pc is probably the thing that keeps me away from mycology.
Those things freak me out.
-------------------- "in sterquiliniis invenitur in stercore invenitur"
In filth it will be found in dung it will be found
|
JewishLawyer
Gypsy Witch



Registered: 02/22/17
Posts: 339
Loc: Iraniganistan
|
Re: does anybody vent their agar? [Re: Morel Guy]
#24251681 - 04/17/17 01:41 PM (7 years, 8 months ago) |
|
|
not gonna lie, the shaking and rocking scared the shit out of me the first few times
-------------------- Niffla said:
my dog ate some of my peyote, unlocked the secrets of the universe and now has tenure at Yale
|
natedawgnow
Rocky mountain hood rat



Registered: 02/09/15
Posts: 8,943
Loc: ation
|
Re: does anybody vent their agar? [Re: JewishLawyer]
#24251690 - 04/17/17 01:45 PM (7 years, 8 months ago) |
|
|
Always vent your pc no matter what you are cooking, from ribs to bird seed
--------------------
|
Morel Guy
Stranger


Registered: 01/23/13
Posts: 15,577
Last seen: 5 years, 19 days
|
Re: does anybody vent their agar? [Re: JewishLawyer]
#24251691 - 04/17/17 01:45 PM (7 years, 8 months ago) |
|
|
I'm sure they can hold a lot of pressure before violently failing. But I worry about water running dry and something breaking, clogging the vents.
Not really a fan of machinery here. Even grow equipment freaks me out. LED's seem safer but even the normal things in my house fail. Got a leaking pipe right now, next to an electrical outlet. Then there is an electric line that runs right next to my shower drain pipes....that leak when I take a bathe.
Gonna be fucked
-------------------- "in sterquiliniis invenitur in stercore invenitur"
In filth it will be found in dung it will be found
|
mushboy
modboy



Registered: 04/24/05
Posts: 35,378
Loc: eating the cats
|
Re: does anybody vent their agar? [Re: JewishLawyer]
#24251694 - 04/17/17 01:46 PM (7 years, 8 months ago) |
|
|
Of course you still vent. Read the manual.
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
Re: does anybody vent their agar? [Re: mushboy]
#24251735 - 04/17/17 02:08 PM (7 years, 8 months ago) |
|
|
I have never vented my pasty plates because I didn't even know that was a thing until a couple weeks ago. and I've never ran into any problems. but now I'm pouring a few petris and wondering if it even makes a difference for agar
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
natedawgnow
Rocky mountain hood rat



Registered: 02/09/15
Posts: 8,943
Loc: ation
|
Re: does anybody vent their agar? [Re: tryptkaloids]
#24251745 - 04/17/17 02:11 PM (7 years, 8 months ago) |
|
|
You probably never had any problems because pastys only have like 1/4" of medium in each one, tops. Now that you are about to pc a whole bottle of medium, you need to vent. You need to vent pastys too, you've just been lucky.
--------------------
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
Re: does anybody vent their agar? [Re: natedawgnow]
#24251760 - 04/17/17 02:16 PM (7 years, 8 months ago) |
|
|
the fact that they were sealed hot probably helps. I'm glad I finally learned about venting because I had no idea where my bacteria problems were coming from
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
JvF
Fletcher Detcher


Registered: 02/13/14
Posts: 2,662
Loc: Chicago
|
Re: does anybody vent their agar? [Re: tryptkaloids]
#24251917 - 04/17/17 03:25 PM (7 years, 8 months ago) |
|
|
My understanding has always been that you need to vent your pc to get all the air out. If you have a combinatiin of air and steam, it may warp your PC or create pockets that dont get sterilized
--------------------
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
Re: does anybody vent their agar? [Re: JvF]
#24251921 - 04/17/17 03:28 PM (7 years, 8 months ago) |
|
|
I've never heard of it warping your pc that way but definitely not thorough sterilization
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
natedawgnow
Rocky mountain hood rat



Registered: 02/09/15
Posts: 8,943
Loc: ation
|
Re: does anybody vent their agar? [Re: JvF]
#24251931 - 04/17/17 03:31 PM (7 years, 8 months ago) |
|
|
Look up partial pressure of gases. It's a chemistry concept which basically details how 2 gases, in the same vessel under pressure, will each account for a portion of the total pressure of the vessel.
Basically, so if you are pcing at 15psi, and you didn't vent, then maybe only 9psi is steam pressure, while the rest is air pressure. You want all 15psi to be steam pressure.
--------------------
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
Re: does anybody vent their agar? [Re: natedawgnow]
#24251941 - 04/17/17 03:32 PM (7 years, 8 months ago) |
|
|
i get the concept, but does it really warp your pc?
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
hamloaf
Q-dood ®©™√


Registered: 12/23/09
Posts: 24,389
Loc: ation: Based.
Last seen: 14 hours, 54 minutes
|
Re: does anybody vent their agar? [Re: JvF]
#24251960 - 04/17/17 03:44 PM (7 years, 8 months ago) |
|
|
Quote:
JvF said: My understanding has always been that you need to vent your pc to get all the air out. If you have a combinatiin of air and steam, it may warp your PC or create pockets that dont get sterilized
This is incorrect. The purpose of the "vent" is to ensure all the substrate materials being sterilized reach boiling point at their internal core before wanting to begin to build pressure to 15 psi, or beyond.
That makes sure everything in the PC is the exact same temperature, and that everything in the PC increases in temperature at the exact same rate, thus ensuring even sterilization.
The larger the substrate materials being sterilized, the longer you are going to want to vent your PC for. The pressure cooker won't warp either.
|
tryptkaloids
Learner



Registered: 02/08/15
Posts: 12,738
Loc: Exact Center
Last seen: 5 days, 22 hours
|
Re: does anybody vent their agar? [Re: hamloaf]
#24251973 - 04/17/17 03:49 PM (7 years, 8 months ago) |
|
|
I just dripped a few drops of bacon grease into my grain water by accident. do you think it's still good?
-------------------- "Remember, kids, the difference between science and screwing around is writing it down" -adam savage
Flowchart for Recommended plan of action.
Learn the tried and true way to grow mushrooms
Use the Damn search engine
After you know what you're doing, take a break
Pick a book, Make some chips!
Josex said:Don't take the site seriously bro, ain't worth it.
|
Moabfighter
Tam Fighter


Registered: 12/13/15
Posts: 2,710
|
Re: does anybody vent their agar? [Re: hamloaf]
#24251976 - 04/17/17 03:51 PM (7 years, 8 months ago) |
|
|
I never vented before and had major contam issues with WBS.
Vent now, seems to be going good. Always vent for everything now.
-------------------- KSSS And PE WBS.
|
JvF
Fletcher Detcher


Registered: 02/13/14
Posts: 2,662
Loc: Chicago
|
Re: does anybody vent their agar? [Re: hamloaf]
#24251983 - 04/17/17 03:52 PM (7 years, 8 months ago) |
|
|
Neat.
Never claimed to have a through understanding, but i remwmber RR saying something about that whem i forst started growing a few years back Thanks for the knowledge
--------------------
|
mushboy
modboy



Registered: 04/24/05
Posts: 35,378
Loc: eating the cats
|
Re: does anybody vent their agar? [Re: tryptkaloids]
#24252016 - 04/17/17 04:11 PM (7 years, 8 months ago) |
|
|
Quote:
tryptkaloids said: I just dripped a few drops of bacon grease into my grain water by accident. do you think it's still good?
bacon tek
i guess its ok? bacon grease would have lots of salt..
|
|