1. The Food and Drug Administration has made a special test on cold salad, and it was found that if the prepared cold salad is kept at room temperature for more than 2 hours, it will be polluted by microorganisms and deteriorate, especially if it is kept at more than 26 degrees.

Second, don't eat overnight dishes such as cold vegetables, because after a night of bacterial decomposition, the vitamins in vegetables are basically lost, and toxic nitrite will be produced.

1. Every summer, patients with infectious diarrhea such as enteritis and dysentery will increase significantly, which has a lot to do with improper preparation methods of cold salad or eating cold salad that has been preserved for too long. Be vigilant.

2. After overnight, there will be more bacteria and toxic nitrate. Moreover, the nutrition contained in overnight vegetables has also been damaged. Therefore, eating cold dishes overnight can not only supplement the nutrients needed by the body, but also cause physical discomfort such as abdominal pain and diarrhea.

Baidu Encyclopedia-Overnight Dishes