Tricholoma can be eaten when it turns black naturally. Tricholoma will react with air and naturally change color, just like potatoes change color after being cut. You can eat it when it is stored for a long time. After it is stored for a long time, the spores of Tricholoma become mature and the folds turn black. You can't eat it when it goes bad. When the inside of Tricholoma turns black and you can smell sour smell, it belongs to deterioration.

1, natural discoloration

After Tricholoma is exposed to air for a long time, some substances on its surface will react and change color, just like a cut potato will change color after a long time. At this time, Tricholoma has only a few black spots, and the whole body is elastic and has no peculiar smell, so it can be eaten.

2, storage for a long time

After storage for a long time, the spores of Tricholoma will mature, Tricholoma will gradually age, the umbrella cover will crack, the membrane will fall off and the folds will turn black. At this time, Tricholoma can be eaten, but the taste and nutritional value will decrease.

3. Deterioration

The interior of Tricholoma becomes black, the stalk becomes black, the elasticity of the mycelium becomes worse, and even becomes sticky. When you can smell the sour smell, it means that it has rotted. At this time, Tricholoma has no nutritional value, and there are potential safety hazards, so it is not edible.