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The porridge that has been kept warm overnight has turned sour. Can it be eaten?

Can’t eat it.

Meals should be eaten within two hours after being prepared; if not eaten, they should be refrigerated. The amount of nitrite produced by meals at room temperature is 7 to 10 times greater than that produced in the refrigerator. Whether overnight food can be eaten depends on the storage conditions. For example, it is best not to eat leftovers, soups, cold dishes, and braised food that have been left at room temperature overnight, as they can easily lead to excessive bacteria and cause diarrhea and other diseases.

Leftovers should be stored at room temperature for no more than 4 hours, and no more than 2 hours when the temperature is high. Pack leftovers into boxes and put them in the refrigerator while they are still hot. Although it consumes a little more electricity, it is safer. Because bacteria multiply fastest at 20°C to 30°C, the temperature must be lowered to refrigeration conditions as soon as possible. Leftovers need to be thoroughly reheated before eating and not stored in the refrigerator for too long.

Extended information:

Rules for safe consumption of overnight meals:

1. Put it directly in the refrigerator after it has cooled down

No food available on the day After eating the food, put it in the refrigerator after it has cooled down. If you place hot food directly in a low-temperature environment, the heat of the food will cause water vapor to condense, promote the growth of mold, and cause the food in the refrigerator to become moldy. Even in winter, food should not be left outside for a long time. The refrigerator can not only keep food cold, but also inhibit bacteria.

2. Different leftovers must be stored separately

Different types of leftovers must be stored separately to prevent bacterial cross-infection. In addition, clean containers must be selected for storage. Such as plastic wrap bags or plastic wrap boxes.

3. Do not add any seasoning when storing the soup overnight

If the cooked soup must be stored overnight, do not add any seasoning to the soup. After the soup is cooked, use a spoon to scoop out the amount you drink for the day, and store the rest in the refrigerator. In addition, leftover soup cannot be placed in stainless steel pots or aluminum pots for a long time, as certain chemical reactions are prone to occur, and should be placed in ceramic or glassware.

4. Cook the leftovers before eating them

After storing leftovers in the refrigerator, they should be fully heated before eating. This can effectively kill the bacteria in the food and reduce the risk of Effects on the body.

5. Eat it within two days

If leftovers are left at room temperature for more than eight hours, the nitrite content will reach more than 30%. Even if it is not refrigerated, it cannot be directly sterilized and bacteria will still breed. Therefore, leftovers must be finished within two days and thrown away directly after three days. It can even cause gastrointestinal problems leading to diarrhea.

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