1, vacuum-packed cooked food has a good fresh-keeping effect, which can generally be kept for about half a month, but in hot summer environment, it needs to be kept in the refrigerator for up to one week.

2. Vacuum packaging is mainly to isolate bacteria in the air, and packaged cooked food can keep fresh. Usually vacuum-packed cooked food can be kept for about half a month. If it is in a hot summer environment, it can be stored for up to one week. Usually, when vacuum packaging is used, it can also be put into the refrigerator for refrigeration, which can make the storage time longer.

3. If the vacuum package contains cooked food such as sausage, ham and bacon, it can be kept in a cool environment for about one year. If preservatives are added to cooked food, vacuum packaging can last longer. If there is air leakage in the vacuum packaging, it may not be well sealed, which may easily deteriorate the cooked food.

4. After the vacuum package is unpacked, if the cooked food inside has no peculiar smell and white mildew, it can be eaten directly. If there is odor and mildew, it means that the cooked food has deteriorated and is not suitable for eating. Under normal circumstances, it is best to eat the cooked food directly to avoid undesirable phenomena.