Cooked rice should not be stored for too long, especially in summer, which tends to turn sour. When steaming rice, if you put some vinegar in the proportion of 1.5 kg of rice and 2 g ~ 3 g of vinegar, it will make the rice easy to store, and the steamed rice has no sour taste, but the rice flavor is stronger. The principle is that microorganisms should not reproduce in the acidic environment of vinegar.

Fry and store.

This method is fried, covered with plastic wrap after cooling, or sealed with a lid to keep cool. Try to heat it thoroughly every few hours.

3. You can try to cover the lunch box directly with plastic wrap, and then put it in a cold water basin to drown the top of the lunch box (the lunch box is pressed by heavy objects).

4. Cover the breathable basket and put it in a cool and ventilated place.

Extended data:

Skills of dealing with overnight meals

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. Be sure to heat it back before the next meal, because some pathogenic bacteria will make people sick, although it will not cause food deterioration.

If food is heated, most microorganisms in food can be killed. Microwave oven can destroy the internal structure of microorganisms in a short time, and its sterilization effect is better than that of 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.

If leftovers are left, they should be loose and placed in a ventilated, cool 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.

References:

Baidu encyclopedia-overnight meal