The blackening of Tricholoma matsutake under umbrella is caused by the reaction between polyphenol oxidase and oxygen in cells with mechanical damage. Just like apples and potatoes will turn black after peeling for a long time, this is a normal reaction, non-toxic and edible.

It's normal for mushrooms to be wrinkled and black, which means that mushrooms are very mature and the membrane has changed. If the mushroom is black, sticky or even sour, it is rotten and inedible.

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Precautions:

When eating Tricholoma, it is best to eat fresh mushrooms. There are bagged liquid-soaked Tricholoma in the market. Before eating, you must rinse it several times to remove some chemicals.

Patients with kidney disease should not eat. Tricholoma contains a substance called chitin, which will hinder digestion and absorption in the stomach. It is still a heavy burden on the body, so pay attention to the ways and means when eating.

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