Spawn & Substrates

Unicorn medium 10T bags are the grain bag most growers learn on: a 5" x 4" x 18" gusseted bag with a 0.2 micron filter patch that holds 3 to 4 pounds of hydrated grain. That is enough to spawn a tub, light enough to break and shake by hand, and small enough that one contaminated bag doesn't sink a whole run. Unicorn bags are made in the USA by the company that created the filter patch spawn bag. The film carries pliability additives so it stays flexible after sterilization instead of...

Blue Myco XLS double patch bags are built for fruiting, not just colonizing. Each 10" x 5.5" x 24" gusseted bag has two oversized 3.8" x 3.8" filter patches rated 0.5 micron, about 29 square inches of filter per bag, so a big block gets the air exchange it needs once it starts producing mushrooms. Fruiting bodies burn oxygen and give off CO2 far faster than colonizing mycelium. A small grain-bag filter can choke a fruiting block; two large, more open patches keep the air moving so you can...

Master's Mix pellets combine the classic 50/50 formula, 50% oak hardwood and 50% soy hull, in a single pellet. There is nothing to weigh, blend or supplement: add water, bag it, sterilize and inoculate. Sold in 40 lb bags or by the 2,000 lb pallet. Because both ingredients are in every pellet, each batch you hydrate comes out at the same ratio, which matters when you are making blocks on a schedule. 40 lbPer bag 50/50Oak / soy hull 2,000 lbPallet option 1 pelletNo mixing SterilizedSubstrate...