5lb Master's Mix sterilized mushroom substrate bag

Master's Mix substrate is 50% hardwood sawdust and 50% premium soy hulls hydrated to optimal field capacity and sterilized. Our Master's Mix is perfect for wood loving gournet mushrooms like Lion's Mane, Chestnut, Oyster varieties, Pioppino, and many more. Master's Mix is high in nutrient supplement proven to increase fruiting yields and colonization speed. All of our sterilized substrate bags are made with premium quality Unicorn brand bags with 0.5 micron filter patches, sterilized in on-site farm autoclaves, and then cooled and sealed in front of lab grade filtered flow hood units. We recommend using fully colonized grain spawn at a rate of 5-20% in Master's Mix substrate bags, allowing substrate colonization, and fruiting directly from the bags. 1lb of colonized grain spawn can inoculate 1-4 of our 5lb pound substrate bags.