How to determine whether a bacterium is safe and nontoxic?

Clean growth, clean color, smooth umbrella surface, fragrant taste, clean secretion and basically non-toxic.

Methods of identifying wild bacteria:

1, growth zone identification

Edible non-toxic wild bacteria mostly grow under clean grass or pine trees; Toxic wild bacteria usually grow in dark, humid and dirty places. ?

2. Color recognition

Toxic wild fungi are brightly colored, and colored strains are generally toxic, especially purple ones, which are often very toxic and easy to change color after picking. ?

3. Shape recognition

Non-toxic wild mushroom is flat, with smooth umbrella surface, no wheel on mushroom surface and aseptic lower part; The poison cap has a convex center, a strange shape, a thick and hard surface, wheels on the stem, and a slender or thick and easily broken rod of Volvariella volvacea. ?

4, secretion identification

Tear off the stems of fresh wild auricularia auricula, the nontoxic secretion is clear as water (some are white), and the surface of auricularia auricula 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. ?

5. Smell recognition?

Non-toxic wild bacteria have special fragrance; Toxic wild bacteria have peculiar smell, such as pungent, sour and disgusting smell.