Raw fungus can not be eaten.

Dry fungus after soaking in water, the shape should be complete, the fungus piece is white or yellowish, elasticity is good, no odor, can be eaten. If you find that the fungus is dark yellow to yellow-brown, not shaped, sticky, inelastic, with a strange odor, fresh fungus has deteriorated, should be discarded, can not be eaten. The fungus should be fully rinsed and the browning part at the bottom of the fungus base should be removed, and the fungus should be fully heated and cooked before consumption.

Normal fungus is generally chrysanthemum-shaped or cockle-shaped, consisting of more than ten thin and wrinkled pieces of fungus. Fresh fungus is white to milky white. It is translucent and elastic. Dried fungus is hard and brittle, beige or golden yellow. If the dried fungus is bright white in color, it may have been smoked with sulfur.

Artificial cultivation of ginkgo is susceptible to the cultivation of the environment and soil, or contaminated by pathogenic bacteria and toxins, people inadvertently eat and poisoning. Therefore, it is prohibited to sell home-picked fresh fungus in farmers' markets in areas where fungus is cultivated artificially. Cultivation of psyllium farmers must discard the fresh psyllium has deteriorated in a timely manner, do not fry their own food, cold fresh psyllium, and do not spoil the fresh psyllium gifts to friends and relatives.

If nausea, vomiting, abdominal pain, even jaundice, hematuria and convulsions and other neurological symptoms occur after consuming spoiled fresh fungus, you should immediately stop consuming the suspected poisoned food and send it to the hospital for medical treatment. The remaining food will be sealed and sent to the local health professional organizations for testing.