1. 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 if you leave it for a long time. After storage for a long time, the spores of Tricholoma mature and the folds turn black.

3. If it goes bad, you can't eat it. If the inside of Tricholoma turns black, it will go bad if you can smell the sour smell.