The same substrate blocks we use to grow our mushrooms you can purchase as well. Made to order and sterilized the week we ship them! The master's mix is 50/50 Soybean hull pellets and wood pellets. If you are a beginner or at-home grower and want to try your hand with inoculation this is a great way to get started. We do offer already fully inoculated bags that are ready to fruit right away too! If you are a small-scale farm or wanting bulk please contact us via email and we can arrange weekly or monthly shipments for you at a discounted price.