2, look at the color: there are brightly colored poisonous mushrooms, such as red, green, dark black, blue, purple, especially purple is often very toxic, easy to change color after picking.
3. Look at the shape: the non-toxic mushroom cover is flat, the umbrella surface is smooth, the mushroom surface has no wheels, the lower part is sterile, the center of the poisonous mushroom cover is raised, the shape is weird, the mushroom surface is thick and hard, there are mushroom wheels on the mushroom handle, and the straw mushroom handle is slender or thick and easy to break.
Extended data:
Precautions:
1, people who are allergic to mushrooms should not eat it. Mushrooms may also become allergens. If they are allergic to mushrooms, eating mushrooms may cause allergic symptoms such as redness, frequent diarrhea, indigestion, headache, sore throat and asthma. Therefore, such people should also avoid eating mushrooms.
2, mushrooms are slippery, and people with diarrhea are not suitable for eating. People with gastrointestinal diseases and liver and kidney failure should not eat mushrooms often, because mushrooms contain a substance called chitin, which hinders gastrointestinal digestion and absorption.
3. Mushrooms contain sodium glutamate. When cooking mushrooms, don't put them in the hot pot, but add them when the dishes are about to go out of the pot. Because when the temperature is higher than 120℃, sodium glutamate will become sodium pyroglutamate, which is harmful to human body and difficult to excrete.
4. It is best to eat fresh mushrooms. Mushrooms sold in supermarkets or shopping malls are sometimes soaked in clear water to ensure quality. Mushrooms soaked in water in this way will have a lot of nutrients dissolved in water. Consumers are advised to buy fresh mushrooms.
Baidu encyclopedia-mushrooms