There are a few black spots on the mushroom cover, but the mushroom is elastic, tasteless and edible. If Tricholoma matsutake turns black, the stalk turns black, the elasticity becomes worse, it becomes sticky and even sour, which means it has deteriorated and cannot be eaten. Not only does it have no nutritional value, but it also has potential safety hazards.

There are a few black spots on the mushroom cover, but the mushroom is elastic, tasteless and edible. If Tricholoma matsutake turns black, the stalk turns black, the elasticity becomes worse, it becomes sticky and even sour, which means it has deteriorated and cannot be eaten. Not only does it have no nutritional value, but it also has potential safety hazards.