Under normal circumstances, the taste of mushrooms should be very sweet and refreshing. If the mushroom tastes sour, bitter and astringent, and the taste is wet, sticky and soft, it means that the mushroom has gone bad and can no longer be eaten.

3. The fresh mushroom umbrella is dark brown and the meat is elastic. Mushrooms will go bad. They look black or brown from the outside, smell bad and feel sticky. Such mushrooms are generally bad, so don't eat them any more. In addition, when buying mushrooms, you must smell them to see if there is a pungent smell other than the fresh fragrance of mushrooms, and avoid buying mushrooms soaked in formaldehyde.