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Offlinep14y80y
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Registered: 12/09/06
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A few questions to do with ingredients
    #7800041 - 12/26/07 02:48 AM (16 years, 1 month ago)

When mixing substrate and casing layer up, can mushrooms still grow if the PH is under 6 or above 8? If so have harmful to your body is it? The ingredients I have been messing with are; Rye Berries, Blood Meal, Coffee grinds, Calcium carbonate, Gypsum, Oyster Shell Flour, Vermiculite, Peat, Coir, Bee Pollen, and Diatomaceous Earth.


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OfflineNibin
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Re: A few questions to do with ingredients [Re: p14y80y]
    #7800062 - 12/26/07 03:03 AM (16 years, 1 month ago)

You don't mix substare and casing. You mix up spawn (your colonized grains for example) with the bulk substrate (i.e. coir, coffee grinds + extras) and once it is colonized you cover it with the casing and induce fruiting conditions.

Casing has to be alkaline (high pH) to make it unhospitable to contaminations (the cube mycelia can tolerate it)

Substrate is a bit more complicated. Most fungi like acidic substrates, the problem is that not only does the cube mycelium like it, so do the contams. So depending on how you are growing you need to do different things.
If you are growing in sterile conditions (i.e. a sterilized filter bag or a jar, you don't need to correct the pH as there will be no contaminants inside the container (you you can leave the substrate slightly acidic as the cube likes)
If you are using a substrate out in the open (i.e a bulk substrate mixed with spawn), even if you are clean there will be some exposure to contaminants so you have to increase the pH (adding among others hydrated lime, calcium carbonate, gypsum). That way, while cube mycelium can tolerate this higher pH and still grow in it, contaminants are slowed down much more and will not be able to take over the substrate.


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Offlinep14y80y
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Registered: 12/09/06
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Re: A few questions to do with ingredients [Re: p14y80y]
    #7801691 - 12/26/07 06:53 PM (16 years, 1 month ago)

Yea I know what you mean, I meant the substrate mix and the casing layer mix separate, for checking the PH balance.


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