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Offlineuniversity99
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Accidental casing sterilize... meant to pasteurize.... SEE PICTURE
    #7335054 - 08/26/07 12:56 AM (16 years, 6 months ago)

I screwed up while I was trying to pasteurize my casing - I left it steaming (live steam) for too long and it shot up to 210 degress by the time I got to it.

Have I created a problem with it now? It likely spent two hours beween 170 and 210. Opinions appreciated. I figure yield is gonna suffer because I killed off the micro-flora in the casing.

Edited by university99 (08/26/07 01:47 AM)

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OfflineSeventy
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335063 - 08/26/07 01:00 AM (16 years, 6 months ago)

sterilizing the casing mix itself is fine, it's not a nutritive layer on its own so it doesn't matter if you kill all the microorganisms in it

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Offlineuniversity99
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Re: Accidental casing sterilize... meant to pasteurize *DELETED* [Re: Seventy]
    #7335101 - 08/26/07 01:16 AM (16 years, 6 months ago)

Post deleted by university99

Reason for deletion: Erronous


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Offlineuniversity99
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335106 - 08/26/07 01:19 AM (16 years, 6 months ago)

Also what are the actual (minimal) temps and times involved in actual sterilizing..... Are there such thing as maximal temps in terms of sterilization.. I would think not??

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OfflineCaptainLinger
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335133 - 08/26/07 01:28 AM (16 years, 6 months ago)

There is no debate, really.
Quote:


it's not a nutritive layer on its own so it doesn't matter if you kill all the microorganisms in it




Which would make sense, except that casing is nutritive plenty....just not to mushrooms. Molds, bacteria, etc will grow just fine. The point of pasteurization is to allow beneficial bacteria to colonize it and keep out molds and contaminant cultures. Bacteria's also a valuable pinning trigger.

That said, I'd guess you're fine. Yes, you probably drastically reduced the contamination-fighting power of your casing. However I frequently use pure vermiculite casings. Not being organic, the verm has no such bacteria. Still stays reasonably sterile over 14 days+ on a casing.

As for cooling...you would like, I'd say, 95 or under. 110 or under is likely fine. I'd go ahead and expose it to air. Getting casing properly hydrated isn't crucial; you can spray it after application. Allowing it to be in open air is absolutely no problem either; that's the state it will enjoy for its entire period of use.

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OfflineCaptainLinger
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Re: Accidental casing sterilize... meant to pasteurize [Re: CaptainLinger]
    #7335147 - 08/26/07 01:34 AM (16 years, 6 months ago)

Quote:

Also what are the actual (minimal) temps and times involved in actual sterilizing..... Are there such thing as maximal temps in terms of sterilization.. I would think not??




Not as such, no. Molds and their spores tend to die by around 130F. Most harmful bacteria will perish at or around boiling temperature. Some thermally resistant bacillus will take prolonged 230+ exposure.

Keep in mind when we say "sterilize"...it's not really sterilization. There's still bacteria there, it's just not enough to replicate and create serious populations within the window of its use. So there's really no bright line...just guides.

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OfflineSeventy
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Re: Accidental casing sterilize... meant to pasteurize [Re: CaptainLinger]
    #7335151 - 08/26/07 01:36 AM (16 years, 6 months ago)

well I'm glad someone around here really knows what they're talking about

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Offlineuniversity99
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Re: Accidental casing sterilize... meant to pasteurize [Re: CaptainLinger]
    #7335157 - 08/26/07 01:38 AM (16 years, 6 months ago)

That makes sense as well.. Thanks for the reply. Have a look at this....
^

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OfflineCaptainLinger
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335159 - 08/26/07 01:39 AM (16 years, 6 months ago)

Oh. My. God.

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OfflineSeventy
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Re: Accidental casing sterilize... meant to pasteurize [Re: CaptainLinger]
    #7335165 - 08/26/07 01:43 AM (16 years, 6 months ago)

what the hell?! thats insane!!

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Offlineuniversity99
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Re: Accidental casing sterilize... meant to pasteurize [Re: Seventy]
    #7335181 - 08/26/07 01:54 AM (16 years, 6 months ago)

More insanity.




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Offlineimplee
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335185 - 08/26/07 01:55 AM (16 years, 6 months ago)

I like this one

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InvisibleBlutjager
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Re: Accidental casing sterilize... meant to pasteurize [Re: implee]
    #7335235 - 08/26/07 02:27 AM (16 years, 6 months ago)

Quote:

implee said:
I like this one





That may be the coolest pic on the entire Shroomery

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Offlineimplee
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Re: Accidental casing sterilize... meant to pasteurize [Re: Blutjager]
    #7335277 - 08/26/07 02:43 AM (16 years, 6 months ago)

Yeah i just hope whos'ever imageshack account its on isnt growing them... Or there in a legal country :smile:

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OfflineThe shroomy 1
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335297 - 08/26/07 02:56 AM (16 years, 6 months ago)

Quote:

university99 said:
That makes sense as well.. Thanks for the reply. Have a look at this....
^




speechless! If I could utter under my breath, it would be, "THANK YOU JESUS..."


--------------------


AMU Q&A thread.

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OfflineSubbedhunter420
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Re: Accidental casing sterilize... meant to pasteurize [Re: The shroomy 1]
    #7335308 - 08/26/07 03:01 AM (16 years, 6 months ago)

Ive seen bigger. lol

keep googling and you'll find bigger grow pics eventually.

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OfflineThe shroomy 1
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Re: Accidental casing sterilize... meant to pasteurize [Re: Subbedhunter420]
    #7335314 - 08/26/07 03:07 AM (16 years, 6 months ago)

Quote:

Subbedhunter420 said:
Ive seen bigger. lol

keep googling and you'll find bigger grow pics eventually.



why do you have to be that way? let us just relish in the moment! (HATER!)


--------------------


AMU Q&A thread.

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Offlineuniversity99
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Re: Accidental casing sterilize... meant to pasteurize [Re: Subbedhunter420]
    #7335352 - 08/26/07 03:49 AM (16 years, 6 months ago)

Quote:

Subbedhunter420 said:
Ive seen bigger. lol

keep googling and you'll find bigger grow pics eventually.




Where are these pics - I can`t find them on the net. You find them and link them to this thread.

Large Holland production : procare.nl

These pics and most you will see of this size are from the Netherlands.


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Offlineimplee
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Re: Accidental casing sterilize... meant to pasteurize [Re: university99]
    #7335438 - 08/26/07 05:35 AM (16 years, 6 months ago)

Secksay!!!

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InvisibleBlutjager
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Re: Accidental casing sterilize... meant to pasteurize [Re: implee]
    #7335478 - 08/26/07 06:31 AM (16 years, 6 months ago)

What are those,I know they aren't cubes

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Offlineaspore
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Re: Accidental casing sterilize... meant to pasteurize [Re: Blutjager]
    #7335509 - 08/26/07 07:04 AM (16 years, 6 months ago)

I think we sterilize jars. Sterilize meaning we DO kill all the beninificial bacteria, and anything else. (spores ect.) LIke in our jars if we had any bacteria at all, it would grow inside the nice little inviroment we have made them.

Pasturizing is where we keep the benificial bacterium around, to help keep away contams, and help induce pinning.

Sterilizing is making it 'blank', or free from all life.

Those pics are from amsterdam, they were in high times about 2 or 3 years ago. Its a factory that makes pretty much all shrooms for the smartshops in the 'dam. They grow 5 different kinds I think, and they sell them all fresh. They start with Filter patch bags with h-poo, cow poo, chicken poo, and grains for spawn, then spawn to the average bulk material in those large humid rooms. Their setup is excellent actually. each strain has its own room and everything.

this issue





the only pics I could find

!aspore


--------------------

c        l        i      c        k        m        e

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Offlineimplee
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Re: Accidental casing sterilize... meant to pasteurize [Re: Blutjager]
    #7335514 - 08/26/07 07:06 AM (16 years, 6 months ago)

They look like copes mang

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Invisibleroquet
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Re: Accidental casing sterilize... meant to pasteurize [Re: Blutjager]
    #7335515 - 08/26/07 07:08 AM (16 years, 6 months ago)

pans?

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OfflineSubbedhunter420
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Re: Accidental casing sterilize... meant to pasteurize [Re: roquet]
    #7336162 - 08/26/07 12:22 PM (16 years, 6 months ago)

yes. panaeolus cyanescens they look like.

and the picture i was looking for was sadly deleted by the user. I believe it was a picture of a room of subbalteatus being grown for a smart shop in amsterdam. twice the size of that chamber at least

I think MJ posted it actually.

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