Drowse said:

xaxphaanes said:

Depends on how much coffee you add since coffee is slightly acidic if you add a shit ton then you will have to add lime if not then there isnt a need for lime.

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Using WBS as spawn, then using an 80 coir / 20 coffee grounds as substrate, how many parts lime should I add?

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xaxphaanes said:

using that ratio you shouldnt need lime i was talking about if you are using somewhere around 50/50 is where the lime would come in since spent coffee grounds are about 6.5 ph. slightly acidic.

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mycocurious said:

xaxphaanes said:

using that ratio you shouldnt need lime i was talking about if you are using somewhere around 50/50 is where the lime would come in since spent coffee grounds are about 6.5 ph. slightly acidic.

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A substrate should have an ideal pH between 6.0-6.5, so that would be fine, without lime. Our mycelium, like most other mycelium, favor slightly acidic substrates to grow in.

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Vegan said:

RogerRabbit said:

Potency is not a function of substrate. Coir is just fine, as is manure, straw, compost, worm castings, coffee grinds, etc.
RR

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SO can ANYONE tell us what is Potency a function of?
RR your opinion would be also appreciated.

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