Generally speaking, the cap and pleat of Tricholoma will turn black, which is normal, but if the meat inside is black after cutting, it is not normal. It is recommended not to eat stale Tricholoma. The meat of fresh Tricholoma is white, and the Tricholoma propagated by bacteria will start to turn yellow or even black. Tricholoma is a kind of wild, relatively resistant to preservation, so it is easy to turn black. If Tricholoma has only a few black spots, it can still be eaten without other odors, but its nutritional value and taste will be reduced.

Tricholoma is a common ingredient in daily life, with high nutritional content. However, due to poor storage, many people have a circle of gray-black or other abnormal performance inside Tricholoma. Pay attention to this situation. The grayish black in Tricholoma should consider whether the surface is grayish black or other areas are grayish black. The reverse side of the mushroom umbrella has been opened, showing gray-black, indicating that the mushroom is not very good when it is old. However, it is still edible. In the case of eating Tricholoma, it is generally recommended to drink water, which is conducive to disinfection and sterilization and food safety. Under normal circumstances, whether Tricholoma can be eaten depends on the details. If the surface is only slightly black, it can still be eaten without mildew. If it's dark and moldy, you can't eat it.

However, if Tricholoma turns black, it will be accompanied by poor elasticity, sour taste and mucus, which shows that Tricholoma matsutake has bred more harmful substances at this time, which may be harmful to health after eating. If the black fluff of Tricholoma matsutake is due to oxidation, not deterioration, then soak Tricholoma matsutake in cold water for 1~2 hours, wipe off the black fluff on Tricholoma matsutake, be careful not to use too much force, and then wash it with warm water. Generally, the color of fresh Tricholoma is white, and whether it is the lid or handle of Tricholoma matsutake, it still looks shiny.

The black inside of Tricholoma indicates that Tricholoma is old and doesn't taste very good. However, it is still edible. After cutting fresh Tricholoma, drench it with lemon or vinegar to prevent it from changing color. Or directly wrap the Tricholoma in a fresh-keeping bag and put it in the refrigerator, but it needs to be taken out from time to time for air, otherwise it will rot easily.