And the common cause of food poisoning is caused by microbial toxins, either these foods contain toxins themselves, such as poisonous mushrooms; or these foods have been contaminated by microbial toxins such as fungi, bacteria, and other microbial toxins, such as moldy, spoiled, rotting food. As for the black fungus, soaked black fungus, even if placed overnight, the production of nitrite content is also very low, therefore, ate long soaked black fungus poisoning, not because of nitrite. In the hot weather season, the soaking time is easy to short not easy to long, can also be placed in the refrigerator soaking.

Even if the high temperature has been processed can not be completely removed, and for this substance even if a very small amount of intake, resulting in a slight poisoning, there will be obvious clinical symptoms, such as fatigue, nausea, vomiting, diarrhea and so on. The most common bacteria are diphtheria bacillus, tetanus bacillus, Clostridium botulinum and Staphylococcus aureus, which are very difficult to kill when cooking, and can easily poison the human body, and the symptoms of poisoning are vomiting and diarrhea in the mild case, and multiple organ failure in the severe case. Because of the black fungus in a long time soaking process improper handling may have toxin accumulation, especially a kind of toxin called rice fermentation bacterial acid is very overbearing, high temperature can not be removed, people will eat the above symptoms, and even lead to organ failure and life-threatening.

Because eaten soaked three days of black fungus, initially diarrhea, later caused organ failure, in the ICU rescue for a week, only to recover a life, the doctor judged to be the wine bubble led to black fungus deterioration, resulting in acute biotoxin poisoning. But the summer heat, black fungus soaked for too long is prone to deterioration, it is possible to generate biotoxins. After consumption, the light produces vomiting, diarrhea and other symptoms of poisoning, the heavy can cause multi-organ failure. Nitrate content will be further reduced. And whether it is nitrates, or nitrites, are soluble in water, soaking and cleaning process, has been a lot of loss, the content of the fungus is small to negligible.