For simplicity, only Straw is referred to in this blog. What is meant by “Straw” is any cellulosic agricultural waste product that can be used to grow oyster mushrooms; for example corncobs, cottonseed hulls, sugarcane bagasse, nut and seed shells, legume hulls, lawn clippings, cereal straws, and the list goes on and on.
Growing oyster mushrooms can often be a low margin business. Booms and bust are to be expected. To make money it is necessary to keep your cost inputs low. The beauty of running straw is that the material and equipment costs are inexpensive, and most importantly you can pasteurize the substrate. Pasteurization is much faster and cheaper than the time, equipment and energy required for sterilization.