The substrate could be the nutrient-abundant material on which your mycelium will expand. Common substrates include things like brown rice flour blended with vermiculite and h2o (normally referred to as BRF cakes) or entire grains like rye or millet. The substrate should be adequately pasteurized to circumvent contamination. (hotly debated). https://thebookpage.com/story6108143/details-fiction-and-buy-cheap-brazilian-cubensis-mushrooms-online