| Pattern | Questions to compare | Evidence that helps |
|---|---|---|
| Several rooms after one delivery | Do they share spawn, compost, casing or transport? | Lot IDs and receipt records |
| One edge or rack level | Does air, water, temperature or access differ here? | Room map and matched readings |
| Sudden change after an operation | What changed, where and when? | Shift log and before/after photos |
| Repeated insect activity | Are entry points, waste or incoming materials involved? | Identified monitoring points and trends |
In the field
Compare the evidence
