There are poisonous mushrooms with bright colors such as red, green, black and blue, especially purple ones, which are often very toxic and easy to change color after picking.

Tear off fresh wild mushrooms, the nontoxic secretion is clear as water (some are white), and the mushroom surface will not change color after tearing off; The toxic secretion is thick and reddish brown, and it is easy to change color in the air after tearing.

Non-toxic mushrooms have a special taste, while toxic mushrooms have a strange taste, such as spicy, sour and fishy.

When picking wild mushrooms, you can wipe the mushroom cover with onions. If the onion turns blue-brown, it proves that it is poisonous, otherwise it is nontoxic.

Take out the juice of the suspected mushrooms collected or bought back, soak it in paper, and immediately add a drop of dilute hydrochloric acid or white vinegar to it. If paper turns red or blue, it will be toxic.