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Question:

Changing the mushrooms?

I have made a few PF Cakes out of vermiculite, brown rye flour, in a few glass jars and a syringe of mushroom spores.(in Aug.) I followed all of the steps, gave birth and grew a few batches of mushrooms, but I don‘t like them. Can I buy a different strain of mushroom spores and plant them and grow them on the cakes I have already birthed and cultivated a few times? Instead of having to make a PF cake from the beginning with the brown rye flour.

Answer:

That will work, unless the previous mushrooms have matured and deposited some spores in the medium. That would mix the varieties and you wouldn't have a clean start. New cakes would work the best since the nutrients are not depleted.
Sure, you can just use different spores on the same medium.

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