Nowadays, many families opt to entertain friends and relatives in the dining room for convenience, and any leftover food is taken home. However, there are specific rules for eating packed food, and if not followed, it can potentially harm your health.
1. Fish Fish is rich in nutrients but also the perfect breeding ground for E. coli. At room temperature (20°C), the number of bacteria on fish can multiply to over a hundred million within 6 hours. Therefore, leftover fish must be reheated before consumption. Be careful not to overheat it, as the animal fat in fish can produce harmful peroxides at high temperatures, and nutrients like vitamins A, E, and D in the oil can be lost due to the heat.
2. Shellfish and Seafood These foods are suitable for taking home, but they must also be reheated before eating. When reheating, add some seasonings like yellow wine, scallions, ginger, and garlic to kill the bacteria that grow on seafood. If some seafood has been left out for too long, it must be marinated in vinegar for about 10 minutes to kill the Vibrio parahaemolyticus bacteria and prevent gastrointestinal discomfort.
3. Starchy Foods Starchy foods like rice cakes should not be kept for more than 4 hours. Even if they don't taste spoiled, they can still cause adverse reactions. This is mainly because they are easily parasitized by Staphylococcus, and the toxins from these bacteria can become problematic when heated. Therefore, such foods must be consumed within 4 hours; otherwise, they should not be eaten, even if they don't appear to be spoiled.