Spawn to Bulk
Photo collection of spawn to bulk (S2B) step in mushroom growing. It is a transfer grain spawn to secondary fruiting substrate (bulk) for further bulk colonization and mushroom fruiting. In fact it's making mushroom cake or mushroom block for fruiting
Related publications
Best grain spawn to bulk ratio
Discussion regarding the optimal ratio of grain spawn to bulk substrate for mushroom cultivation
Spawn to Bulk & Casing
STEP 8. How to make mushroom cake or spawn to bulk for MonoTub, Bottle-tek etc. How to prepare bulk and casing substrate. Advantages of bulk and casing. Substrate recipes. Additives for fruiting substrate and casing. Bulk and Casing colonization
Sterilization vs Pasteurization for bulk substrate
Pros and cons of Sterilization and Pasteurization for preventing green mold Trichoderma contamination in mushroom growing
Choose substrate for mushrooms
STEP 2. Overall guide about substrate types for mushroom growing. The difference between substrates: grain for spawn, bulk and casing. Choose right grain for spawn. First step of grain substrate preparation



















