For spawn, use sterilized rye grain baggage or quart jars with rye grains or brown rice flour. Grains give optimum nutrition for mycelium expansion.
These knowledge were reviewed by Jonathan Ott in Pharmacotheon https://francesbgba602577.fare-blog.com/28829878/the-smart-trick-of-magic-mushrooms-for-sale-in-usa-that-no-one-is-discussing