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OfflineJustlookin0
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Registered: 06/16/05
Posts: 29
Last seen: 11 years, 3 months
Casing mix
    #4534345 - 08/14/05 05:38 PM (11 years, 9 months ago)

In my (sterilized)casing mixture i have used 44%coir/21%verm/35% crushed oyster shell saturated with 7.6 Ph tap water until it just barely dripped with a good squeeze.

Is 35% OS too much maybe ?
Take a look at the high resolution picture of the shells. Oyster shell size from 1/16 to 1/4 inch but most are 1/8 wide.



Edited by Justlookin0 (08/14/05 05:38 PM)


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Offlinejohnson657
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Re: Casing mix [Re: Justlookin0]
    #4534387 - 08/14/05 05:52 PM (11 years, 9 months ago)

You shouldn't need a buffer unless you are using peat moss


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InvisibleThinkPink
Cheese Farmer
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Registered: 06/15/05
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Re: Casing mix [Re: johnson657]
    #4534415 - 08/14/05 06:00 PM (11 years, 9 months ago)

Quote:

johnson657 said:
You shouldn't need a buffer unless you are using peat moss





:thumbup: :thumbup: :thumbup:


Where did you see that recipe for the casing??????

You combined 2 different methods that dont go well together.  Try the 50/50 tek with COS


--------------------
I tripped and fell into a revolution


Edited by ThinkPink (08/14/05 06:02 PM)


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OfflineJustlookin0
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Re: Casing mix [Re: ThinkPink]
    #4534571 - 08/14/05 06:43 PM (11 years, 9 months ago)

Actually i slightly modified Paul Staments casing recipe. I used coir(A nuetral pH) instead of moss(Slightly acidic) and substituted some coir to vermiculite for more moisture retention in the mixture. I also increased the percentage(by volume) of oyster shell because his recipie uses A more soluble form of CACO3 being limestone powder And lime stone grit ....His mixtures consists of 27% of those 2 ingredients.Because my oyster shells are not even close to being as soluable i increased my percentage to 35%. Thats the reasoning behind the magic.....Uhhh, i mean mixture. LoL .....Im no expert so i guess only time will tell. Ill post pics later when my casings fruit.


Edited by Justlookin0 (08/14/05 07:37 PM)


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InvisibleThinkPink
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Re: Casing mix [Re: Justlookin0]
    #4534596 - 08/14/05 06:50 PM (11 years, 9 months ago)

>>>I used coir(A nuetral pH) instead of moss(Slightly acidic)

Thats why you dont need the oyster shell....


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OfflineJustlookin0
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Re: Casing mix [Re: ThinkPink]
    #4534715 - 08/14/05 07:23 PM (11 years, 9 months ago)

From what i have read from many sources is that Oster shell does very little to balance the initial casing pH .pH is ballanced when
"species in the genus secrete assorted alcohols and acids as metabolic
waste products" ,Paul Stamets .
" Even though the casing has a pH of 7.5 when first applied, it gradually falls to a pH of nearly 6.0 by the end of cropping due to acids secreted by the mushroom mycelium. Buffering the casing with limestone flour is an effective means to counter this gradual acidification." , Paul Stamets .
So in lamens terms, what paul is saying is...When the mush flush/mycelium colonize they make acid...Acid breaks down oyster shell and ballances PH. Once again i increased my Oyster shell CACO3 % by volume a little because its less soluable than powder calcium carbonate.I didnt really put it in there to make the casing more alkaline to start, just to act as a buffer/conditioner for later.


Edited by Justlookin0 (08/14/05 07:32 PM)


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