- Using old or patchy spawn to save money; a weak run gives competitors weeks to take over the bag.
- Over-wet straw that drips when squeezed; it turns airless and sour and the mycelium stalls.
- Skipping or shortening heat treatment because the fire was slow; under-treated straw is the commonest cause of green mould.
Mycelium, Spawn & Substrate
Pause and recall
