Record: Bag number, spawn date, daily bag-level temperature, colonisation stage on check days, bags discarded and why.
Number every bag and write the spawning date on it.
Each morning note the temperature at bag level; act the same day if it passes 30 C.
On days 3, 7, 12 and 18 describe three bags: no white, patches, half, full.
Keep unexpected growth or suspect bags closed, mark the batch and follow the farm's containment and authorised disposal procedure. Do not deliberately smell or open material to identify a problem.
Open only after day 16-18 and only when fully white; log the date.

