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OfflineLangdon
Title
Registered: 10/24/02
Posts: 20
Last seen: 14 years, 19 hours
Sterilize the Casing?
    #992957 - 10/25/02 05:28 PM (14 years, 1 month ago)

Hi,

I was hoping that you could share your adivce on casing. I am following Stamets by the book, but he doesnt mention anything about Sterilizing the casing layer before applying it. It seems to me that all the work is so prone to contaimination not sterilizing it would be disaterous.

Any comments?

Thanks in advance


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BTW, the above information pertains to the cultivation of shitake mushrooms and none other. I only use the shroomery forums as an information source for fungi propogation, not the cultivation of psylocibes.


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OfflineSkikid16
fungus fan

Registered: 06/27/02
Posts: 5,666
Loc: In the middle of the nort...
Last seen: 11 years, 7 months
Re: Sterilize the Casing? [Re: Langdon]
    #992967 - 10/25/02 05:31 PM (14 years, 1 month ago)

Well what are you planning on using for your casing layer? If its straight verm you could probably get away with not sterilizing. But if you are using Peat/verm mix you need to at least pasteurize, be better to sterilize. Good luck.


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Re-Defeat Bush in '04


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Offlinehyper_dermic
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Registered: 06/26/02
Posts: 736
Loc: the land of excess
Last seen: 12 years, 3 months
Re: Sterilize the Casing? [Re: Langdon]
    #992970 - 10/25/02 05:32 PM (14 years, 1 month ago)

Some do, some dont, depends on what u are useing for a caseing... some just pasturise, i sterlized mine just to be sure... i may try to microwave it next time....
it never hurts to be overly cautious...
but some swear ya dont need to ....
[hyp]


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OfflineLangdon
Title
Registered: 10/24/02
Posts: 20
Last seen: 14 years, 19 hours
Re: Sterilize the Casing? [Re: hyper_dermic]
    #992981 - 10/25/02 05:36 PM (14 years, 1 month ago)

I am thinking a peat/limestone mixture

BTW how well does a straight verm casing work compared to a soil base one?


--------------------
BTW, the above information pertains to the cultivation of shitake mushrooms and none other. I only use the shroomery forums as an information source for fungi propogation, not the cultivation of psylocibes.


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Offlinedscokeman
What would youdo for aklondike Bar

Registered: 10/05/02
Posts: 35
Loc: Some place where the sun ...
Last seen: 13 years, 9 months
Re: Sterilize the Casing? [Re: Langdon]
    #993015 - 10/25/02 05:56 PM (14 years, 1 month ago)

I bake my verm and brf @ 350 degrees for 30 min when I make cakes, it might work the same...


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"I have not failed. I just found 10,000 ways that won't work."- Thomas Edison


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OfflineLangdon
Title
Registered: 10/24/02
Posts: 20
Last seen: 14 years, 19 hours
Re: Sterilize the Casing? [Re: dscokeman]
    #993032 - 10/25/02 06:06 PM (14 years, 1 month ago)

How about autoclaving the casing mixture before layering it?
Or would that kill all the nutrients?


--------------------
BTW, the above information pertains to the cultivation of shitake mushrooms and none other. I only use the shroomery forums as an information source for fungi propogation, not the cultivation of psylocibes.


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OfflineSkikid16
fungus fan

Registered: 06/27/02
Posts: 5,666
Loc: In the middle of the nort...
Last seen: 11 years, 7 months
Re: Sterilize the Casing? [Re: Langdon]
    #993114 - 10/25/02 06:54 PM (14 years, 1 month ago)

Peat/limestone, huh? Nope, do this
http://www.thehawkseye.com/50-50casing.html
Only substitute calcium carbonate for hydrated lime. If you want to see how verm performs do a search in the Grow Log forum. Have fun.


--------------------
Re-Defeat Bush in '04


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OfflineDrummer
CelestialMechanic
Male

Registered: 08/16/00
Posts: 703
Loc: SE Michigan
Last seen: 3 months, 2 days
Re: Sterilize the Casing? [Re: Skikid16]
    #993786 - 10/26/02 12:19 AM (14 years, 1 month ago)

Whats wrong with peat/verm/limestone? Its a tried and true casing.
Casings my squirrel does include peat/verm/lime/oyster shells. Works good for him.



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People don't want other people to get high, because if you get high, you might see the falsity of the fabric of the society we live in.

-Ken Kesey


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OfflineSkikid16
fungus fan

Registered: 06/27/02
Posts: 5,666
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Last seen: 11 years, 7 months
Re: Sterilize the Casing? [Re: Drummer]
    #993796 - 10/26/02 12:27 AM (14 years, 1 month ago)

Anno had a great explination. Lime is a harsh buffer and its not great for mycelium growth. I don't know the details right now (sorry i'm a little tired).


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Re-Defeat Bush in '04


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OfflinetelefunkenU47
numerator
Registered: 08/03/02
Posts: 102
Loc: cartoon planet
Last seen: 13 years, 3 months
Re: Sterilize the Casing? [Re: Langdon]
    #994448 - 10/26/02 10:21 AM (14 years, 1 month ago)

when i use straight vermiculite, i don't sterilize. everything else gets pasteurized.


--------------------
Central Scrutinizer:
This is the CENTRAL SCRUTINIZER...
That was Joe's first confrontation with The Law.
Naturally, we were easy on him.
One of our friendly counselors gave him
A do-nut...and told him to
Stick closer to church-oriented social activities.

-Frank Zappa's "Joe's Garage"


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InvisibleAlien
Galactic Shaman

Registered: 11/14/99
Posts: 1,849
Loc: Jupiter's Moon
Post deleted by Administrator [Re: Langdon]
    #994467 - 10/26/02 10:44 AM (14 years, 1 month ago)



--------------------
-Alien :cool:

Alien Substrate Instructional:  http://www.youtube.com/watch?v=KG82xLzrNg8


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InvisibleBilge
longtimenoC

Registered: 08/26/02
Posts: 1,858
Loc: USA
Re: Sterilize the Casing? [Re: Alien]
    #994564 - 10/26/02 12:51 PM (14 years, 1 month ago)

my friend bakes 50/50+ at 375 F for one hour in a pyrex dish covered with foil, then lets it cool in the oven which takes 8 hours or so. he makes it too wet to begin with so when it's done it is just right. great results. after reading shroomery tips about hydrated lime, he uses a little less than called for in hawkeye's 50/50+. apparently the issue is how easy it is to use too much and get the pH far too high. so my friend adds a little less than the recipe and mushrooms really like it.


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