Here's the bookshelf where I grow my peroxide-treated "Ten Minute Spawn," which will be used to inoculate the final bulk substrate for mushroom production. As always, there is no air filtration in use. The Ten Minute Spawn is a sawdust based medium. Some species are better grown on sterilized grain spawn, which can also be treated with peroxide after pressure-cooking to destroy the peroxide-decomposing enzymes present in the raw grain. There are even forms of grain that can be prepared with a brief steaming much like the Ten Minute Spawn, but these tend to be much more expensive than raw grain. [Next]
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