Record: Date, spawn source and packing date, visible development through sealed packaging, bag temperature versus room temperature, and the colour of the spore print.
Observe a sealed, labelled spawn bag with your trainer. Identify the mycelium without opening it or deliberately smelling it.
Take one fresh mushroom apart. Find the cap, gills and stem. On a button, find the veil; on a paddy straw mushroom, the volva.
Lay a cap gills-down on white paper under a glass overnight. In the morning you will see a spore print.
Put one thermometer inside a spawned bag and one in the room air. Note the difference morning and evening.
Write spawn, substrate, mycelium, pinhead and flush in your diary, each with your own one-line meaning.