| Production stages | Sample type | n | Farms | |||
|---|---|---|---|---|---|---|
| A | B | C | D | |||
| Raw materials (n=33) | ||||||
| Rice straw | 6 | 3 | - | - | 3 | |
| Wheat straw | 6 | 3 | - | - | 3 | |
| Heaped rice straw | 3 | - | 3 | - | - | |
| Heaped wheat straw | 3 | - | - | 3 | - | |
| Chicken manure | 12 | 3 | 3 | 3 | 3 | |
| Liquid fertilizer | 3 | - | - | 3 | - | |
| Subtotal | 33 | 9 | 6 | 9 | 9 | |
| Composting with pasteurization (n=72) | ||||||
| Compost stack | 12 | 3 | 3 | 3 | 3 | |
| 1st turned compost | 12 | 3 | 3 | 3 | 3 | |
| 2nd turned compost | 12 | 3 | 3 | 3 | 3 | |
| 3rd turned compost | 12 | 3 | 3 | 3 | 3 | |
| 4th turned compost | 12 | 3 | 3 | 3 | 3 | |
| Pasteurized compost | 12 | 3 | 3 | 3 | 3 | |
| Subtotal | 72 | 18 | 18 | 18 | 18 | |
| Fruiting (n=33) | ||||||
| Spawn | 9 | - | 3 | 3 | 3 | |
| Colonized bed | 12 | 3 | 3 | 3 | 3 | |
| Casing soil | 12 | 3 | 3 | 3 | 3 | |
| Subtotal | 33 | 6 | 9 | 9 | 9 | |
| Harvesting (n=60) | ||||||
| Casing soil layer | 12 | 3 | 3 | 3 | 3 | |
| Harvested mushroom | 12 | 3 | 3 | 3 | 3 | |
| Knife | 12 | 3 | 3 | 3 | 3 | |
| Basket | 12 | 3 | 3 | 3 | 3 | |
| Gloves | 12 | 3 | 3 | 3 | 3 | |
| Subtotal | 60 | 15 | 15 | 15 | 15 | |
| Packaging (n=36) | ||||||
| Bench | 12 | 3 | 3 | 3 | 3 | |
| Scale | 12 | 3 | 3 | 3 | 3 | |
| Packaged mushrooms | 12 | 3 | 3 | 3 | 3 | |
| Subtotal | 36 | 9 | 9 | 9 | 9 | |
| Total (n=234) | 57 | 57 | 60 | 60 | ||