Nowadays, the habit of packing leftovers after dining out is becoming increasingly popular. But have you ever thought about how to better utilize the nutritional value of packed food after bringing it home?
The Art of Packing Leftovers 1. Let food cool completely before refrigerating
This is because when hot food is suddenly placed in a low-temperature environment, the center of the food is prone to spoilage. Furthermore, the heat from the food causes water vapor to condense, promoting mold growth, which can lead to spoilage of all food in the refrigerator. 2. Reheat packed food thoroughly
Food stored in the refrigerator must be reheated before consumption. This is because the temperature of a refrigerator can only inhibit bacterial growth, not kill them completely. If you eat the food without reheating it, it can cause discomfort, such as dysentery or diarrhea. 3. Don't store leftovers for too long
Leftovers should ideally be eaten within the same meal. For example, leftovers from breakfast should be eaten for lunch, and leftovers from lunch for dinner. It's best to consume them within 5 to 6 hours. Under normal circumstances, heating food to 100°C for a few minutes can kill certain bacteria, viruses, and parasites. However, if food is stored for too long, bacteria in the food will release chemical toxins. These toxins cannot be neutralized by heating. [China Cuisine] 4. Avoid packing vegetarian dishes
In the preparation of vegetarian dishes, salt is generally used sparingly. When these dishes are left at high temperatures for a long time, bacteria in the vegetables multiply rapidly. Bacteria convert nitrates into nitrites. Nitrites can easily combine with amines in nature to form nitrosamines, which are potent carcinogens. If we regularly eat leftover vegetables, it is detrimental to our health. For instance, the risk of developing stomach cancer is higher for those who regularly consume pickled foods.
Important Things to Note When Reheating Leftovers
Fish: Reheat for about four to five minutes
Bacteria in cooked fish multiply very quickly. For example, E. coli can double in number every 8 minutes at around 20°C. Within five to six hours, a single bacterium can become 100 million, which is enough to cause an upset stomach.
Therefore, packed fish must be reheated for four to five minutes. However, overheating can destroy valuable nutrients such as complete proteins, fish oils, and vitamins that are beneficial to the nervous system.
Meat: Add a little vinegar when reheating
When reheating meat and animal-based foods, it's best to add a little vinegar. These foods are rich in minerals, which can leach out with moisture during reheating. By adding vinegar, these minerals combine with acetic acid to form calcium acetate. This not only enhances the nutritional value but also helps our bodies absorb and utilize these minerals.
Seafood: Add seasonings when reheating
When reheating shellfish and seafood, it's best to add extra ingredients like wine, scallions, and ginger. This not only enhances the flavor but also has a certain antibacterial effect, killing the latent *Vibrio parahaemolyticus* and preventing gastrointestinal discomfort. Ginger, in traditional Chinese medicine, is known for its antibacterial and detoxifying properties, especially against toxins from fish, shrimp, and crab.
Starchy foods: Finish within 4 hours
Starchy foods that are brought home should be eaten within 4 hours because they are easily colonized by *Staphylococcus aureus*. The toxins produced by these bacteria are not broken down by high heat, so reheating cannot solve the problem of spoilage.