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InvisibleBUDDHA_702
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Registered: 02/17/07
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Casing mix and gypsum
    #7710892 - 12/03/07 12:59 PM (16 years, 1 month ago)

I was reading up on some casing teks and saw that Stamets tek included gypsum.
That's the only casing recipe I have ever seen with gypsum.

I have the ingredients for a 50/50 casing mix but not a 50/50+.
Should I add some gypsum to the 50/50?
if so how much?


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InvisiblePremedman1
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Re: Casing mix and gypsum [Re: BUDDHA_702]
    #7710909 - 12/03/07 01:03 PM (16 years, 1 month ago)

You can use up to 10% of gypsum in relation to the peat. Don't forget to adjuat the PH of the mix with hydrated lime.


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OfflineWronguy

Registered: 03/05/05
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Re: Casing mix and gypsum [Re: Premedman1]
    #7710917 - 12/03/07 01:06 PM (16 years, 1 month ago)

:thumbup:


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InvisibleBUDDHA_702
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Re: Casing mix and gypsum [Re: Premedman1]
    #7710919 - 12/03/07 01:06 PM (16 years, 1 month ago)

I don't have lime only crushed oyster shells and some oyster shell flour.


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OfflineRogerRabbitM
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Re: Casing mix and gypsum [Re: BUDDHA_702]
    #7710936 - 12/03/07 01:09 PM (16 years, 1 month ago)

Quote:

BUDDHA_702 said:
That's the only casing recipe I have ever seen with gypsum.





You must not have read any of my posts on casing. There's not a single commercial mushroom farm anywhere to my knowledge that doesn't use gypsum. It makes that much difference. The casing tek on my DVD shows ten percent gypsum by volume. Mix the gypsum and lime together well, and then mix them into the dry peat before hydrating.
RR


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"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
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InvisibleBUDDHA_702
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Re: Casing mix and gypsum [Re: RogerRabbit]
    #7710964 - 12/03/07 01:15 PM (16 years, 1 month ago)

Will having no lime make much of a difference?


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