What kind of lunch boxes do office workers use to be healthy?

Now many office workers have the habit of bringing their own meals, so what should we pay attention to in a healthy diet? What kind of lunch box is better to accompany the meal? What should I pay attention to with ingredients? First: choose a fresh-keeping box: pay attention to the materials used in plastic boxes. Pay attention to the manufacturing materials when buying plastic boxes. Because the heat resistance of polypropylene (PP) is higher than that of polyethylene (PE) and polystyrene (PS), it is recommended that families who have meals at work choose PP products ... But many microwave oven food plastic boxes are made of PP, but the covers are made of PE or PS, so take off the covers when heating food. 2. Change the plastic of the crisper regularly. If plastic boxes are often heated and exposed to the sun, it is easy to destroy plastic molecules and become fragile and aging. Therefore, it is found that plastic boxes should be replaced if they become hard, transparent, atomized, deformed and scratched. If you put it in the microwave oven again, it will release more harmful substances. Clean thoroughly before use. Before using it for the first time, wash it thoroughly with detergent. However, people who bring food to work should pay attention to avoid using abrasive scouring pad to avoid scratching the plastic box. Use glassware instead. In fact, the best way to bring food to work is to switch to glassware. Especially when heating foods with high oil content or high sugar content, it is very easy to destroy rubber molecules. It is best to use glass or ceramic utensils suitable for microwave ovens. Don't just heat the plastic box in the microwave oven. Sometimes hotels will provide customers with boxes to pack. If the box is not marked or the manufacturer's instructions indicate that the product can be used in the microwave oven, the food should be transferred to a suitable container for heating. Second: What meals should not be brought to work? The staple food is preferably rice. Rice is the best staple food for people who bring rice to work. From the point of view of microwave heating, the heated rice can basically keep its original state, and steamed bread and pie are easy to dry, which is not suitable for microwave heating. Cold seafood dishes are not suitable. Fish and seafood are not allowed. On the one hand, fish and seafood can easily produce protein degradation products overnight, which will damage liver and kidney functions. On the other hand, it is difficult for fish and seafood heated by microwave oven to maintain their original color and flavor, which will also affect their appetite from the appearance. It is not advisable to bring cold salad. The key is not to eat cold salad overnight. It is also best not to bring Sichuan-style pork, sweet and sour pork ribs, patties, fried rice, etc. Because they contain too much oil and these things go bad more easily than low-fat foods.