There are leftovers almost every day. Some people say: "overnight dishes are unsanitary and nutritious, so throw them away"; Others said: "Overnight meals can be eaten as long as they are not bad." In fact, these two statements are not comprehensive.

It is important to dispose of leftovers. Of course, it is best not to leave leftovers, but to cook according to the number of people. If leftovers are left, they should be loose and placed in a ventilated, loud and clean place to avoid pollution. When the temperature of leftovers is close to room temperature, put them in the refrigerator for cold storage.

Leftovers should be kept for 5-6 hours without eating, having breakfast at noon and having lunch at night. Be sure to heat the leftovers thoroughly before eating, and be sure to heat them thoroughly before eating. Don't eat leftovers soaked in hot water or vegetable soup, and don't pour leftovers into new rice to avoid incomplete heating. It should be emphasized that leftovers are easy to cause food poisoning. Most of the time, rice looks normal and will not turn sour or sour, but it will be uncomfortable, slightly sticky or slightly smelly, so it must be heated thoroughly before eating.

Overnight vegetables have been stored for some time because of pollution during eating. Vegetables are high in microbial content, and there are indeed health problems. Improper diet will affect health.

So, what are the tips for overnight food processing?

1. Put it in the refrigerator as soon as possible after eating, so as to shorten the storage time at room temperature and slow down the growth and reproduction of bacteria in vegetables.

2. Be sure to heat it back before the next meal, because some pathogenic bacteria will make people sick, although they will not cause food deterioration. If food is heated, most microorganisms in food can be killed.

3. The microwave oven can destroy the internal structure of microorganisms in a short time, and the sterilization effect is better than the traditional "burning". Of course, at the same time of heating sterilization, vitamin C in plant food will be destroyed and some nutrients will be lost.

Shelf life of vegetables overnight

1. Overnight dishes can be stored for 1-2 days at a low temperature below 5 degrees. If stored for more than 3 days, naturally occurring nitrate in vegetables will be converted into nitrite, which is carcinogenic and cannot be removed by heating.

2. Animal food will go bad in 3-4 hours at 25-30 degrees.

3. Cold salad, jellyfish and other cold salad were polluted during processing. Even if it is refrigerated overnight, it is likely to have deteriorated and should be cooked and eaten now.

4. The salted food contains a lot of salt, and the safe eating period can be extended to 3-4 days.