How many days can you eat soaked black fungus in winter

Many people are familiar with black fungus. This ingredient is delicious whether it is stir-fried or served cold. The most common way to eat it is to serve it cold. Of course, stir-fried black fungus is also very delicious, such as stir-fried black fungus with garlic, stir-fried black fungus with jellyfish, etc. However, the fungus must be soaked before frying, otherwise it will affect its taste. Whether it is winter or summer, the soaking time of the fungus should not exceed 8 hours.

Many people know the importance of diet. Eating the wrong food can cause certain harm to the body. Recently, some people developed symptoms such as liver failure, kidney failure, and severe myocardial failure due to eating spoiled black fungus.

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On the evening of October 20, Bi Xue and her husband Dong Xiaoliang ate black fungus together. At that time, the black fungus had been soaked for almost two days, and her husband cooked scrambled eggs with the black fungus. Bi Xue washed the fungus. He didn't know whether it had gone bad, but the soup from the fried fungus was more than usual. People in Northeast China have strong tastes, so we added chili peppers and a lot of salt, so the food didn’t taste different. Dong Xiaoliang was very sure that it was black fungus that caused the couple to be poisoned. At noon the next day, Bi Xue began to feel nausea, vomiting, and diarrhea, then had a fever and cold limbs, and was rushed to the hospital. Not only was she poisoned, but her husband was also poisoned. But Xiaoliang only got better after vomiting and diarrhea, but she collapsed. After rescue, Bi Xue saved her life, but her kidneys suffered permanent damage.

"It was only through the description of the patient's family that we determined that the patient was poisoned by spoiled black fungus." The doctor said that black fungus that has been soaked for too long will produce biological toxins, especially in the hot weather in the south. Black fungus that has been soaked for a long time is more likely to produce biological toxins. The principle of poisoning is similar to that of poisonous mushrooms. This was their first time to rescue a patient poisoned by eating spoiled black fungus. Before that, they had rescued patients poisoned by poisonous mushrooms, aconite and other biological toxins.

Microbial toxins cause serious consequences

Experts say that in fact, fresh wood ear cannot be eaten, because it contains a substance called "porphyrin". After people eat it and are exposed to sunlight, they will develop phytophotodermatitis, which will cause itching, redness, swelling, itching and pain on the skin.

Therefore, wood ear needs to be dried under sunlight to decompose the "porphyrin" and other substances before it can be eaten. Under normal circumstances, it is fine to soak qualified dried black fungus and then stir-fry it or blanch it and eat it cold. However, if the fungus has been soaked before, the temperature is high in summer, and harmful substances that are enough to threaten life and health may be produced in the process.

Some analysts say that the reason why black fungus that has been soaked for a long time cannot be eaten is because it contains nitrite. A careful analysis revealed that some existing experimental data showed that although the nitrite content in the fungus increased slightly after being soaked for 24 hours, this amount was negligible for human health. The diagnosis given by the attending doctor was that the subsequent serious consequences were most likely caused by microbial toxins. However, further testing and judgment are needed to determine what kind of bacteria or toxins are produced during the soaking process of wood ear mushrooms. The toxicity of microbial toxins cannot be underestimated, such as aflatoxin and penicillin.

Experts say that in fact, in hot weather, not only black fungus, but also dried mushrooms, dried beans, dried day lily, etc. may produce biological toxins such as aflatoxin if soaked for too long. After consumption, they may cause poisoning symptoms such as vomiting and diarrhea.