In the summer, basically every household will prepare several watermelons. However, how do you deal with watermelons that you can't finish? Many people think that the food that can't be eaten is sealed with plastic wrap and then placed in the refrigerator, which is safe and hygienic. In fact, not all foods are suitable for preservation with plastic wrap, such as the best-selling watermelon in summer. Then we can't help but ask: Is watermelon hygienic?
    Recently, some media have conducted experiments on the issue of the use of plastic wrap for watermelon. After putting the watermelon on the plastic wrap and putting it into the refrigerator, it was found that the bacteria were more than the plastic wrap. Experts explained that because plastic wrap impedes the cooling of watermelon, it provides conditions for bacterial reproduction. If the bacteria are so toxic, a small number of bacteria can cause disease. Dong Jinshi, a food safety expert and executive vice president of the International Food Packaging Association, believes that watermelons preserved with plastic wrap are worse than those without plastic wrap. Because watermelon has bacteria and microorganisms on the surface before it is covered with plastic wrap. If the permeable and permeable function of the wrap film is not good and the temperature drops slowly, these microorganisms or bacteria will multiply faster, especially after anaerobic reaction. It is easy to deteriorate.
    It is reported that the cling film is too thick, which will cause the food to not "breath" to oxygen, resulting in anaerobic fermentation leading to decay and deterioration. "It is important to note that some people will feel that more layers can be kept fresher. In fact, the plastic wrap not only keeps the water non-volatile, but also allows the carbon dioxide inside to go out. It is too thick and is not conducive to preservation. "The best preservation, It is to eat in the shortest possible time. Dong Jinshi said, "The crisper keeps the taste of the food while keeping the water, so if it is to preserve the cooked food, a better choice is to use the crisper. â€
    The above is to answer the question of whether the watermelon wrap is hygienic, but there are three types of watermelons that are not suitable for eating. One is that people with poor kidney function should not eat more; the other is diarrhea on the day or the day before. Do not eat watermelon; the third is to eat ice watermelon after long distance and strenuous exercise.
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