Uncle Myc's | Master's Mix Bulk Substrate 4lbs

Master's Mix is the classic 50/50 blend of soy hulls and hardwood sawdust, a common substrate for gourmet species like oyster and lion's mane. Soy hulls supply the nutrition and the sawdust gives the structure.

Uncle Myc's sterilizes it in certified autoclaves rather than pasteurizing, and it comes ready to inoculate in a 4 lb bag, with no prep.

Pairs with: Uncle Myc's Rye Berry Grain Sterilized Mushroom Spawn Bag 2 lb.