Overnight soaked fungus is not recommended to eat, but if the fungus is properly preserved after the fungus is fried, it can be eaten. If the fungus is soaked for a long time, after a night time, it is easy to be contaminated by Pseudomonas coccineus, which produces myrmecolic acid, which can lead to food poisoning after consumption, causing nausea, vomiting, dizziness and other symptoms, and causing convulsions and coma, and finally death due to respiratory failure, cerebral hemorrhage and uremia, which is a very high mortality rate. The best time to soak is about 4 hours. If the fungus is soaked and stored in the refrigerator, it is generally edible, but if it is not stored properly and spoils, it should not be eaten. If the fried fungus is not eaten, put in the refrigerator to save, overnight is edible. Fungus is nutritious, every 100 grams of fungus contains 25 calories, of which 6.75 grams of carbohydrates, 0.48 grams of protein, 0.04 grams of fat, 16 milligrams of calcium, 0.6 milligrams of vitamin C, which can provide the human body with appropriate nutrients. So healthy people can eat in moderation as long as they are not allergic to fungus. However, it is still recommended to consume all the fungus as soon as possible after soaking it for a short time.