Leafy vegetables, especially dark green vegetables, are not suitable for bringing rice. First, the nitrate content of green leafy vegetables is too high, which is easy to become nitrite and easy to change color. After the second heating, the taste is not good, and the vitamin loss is particularly large. You can choose something like eggplant, wax gourd, potato, carrot, cauliflower, zucchini, mushroom and so on. They are very resistant to heating, and it is not a big problem to heat them for two or three times. Because green leafy vegetables have high nutritional value, they must be eaten every day. You can consider going home at night to supplement them. In this way, the amount of vegetables in one day is enough and the safety is improved.

At work, the box lunch should be placed in a cool place, and it can be placed on the balcony in winter. If there is a refrigerator, it should be put in it immediately. Don't open the lid and turn it over before eating. Heat it thoroughly in a microwave oven or steamer before eating, especially when there is no refrigerator. Don't take the unfinished lunch box home, except the fruit, because it is unsafe to leave it at room temperature for too long after turning it over.

In addition, I also want to advise you not to open the box when you bring rice, so as to avoid the bacteria in the air from falling into it to the maximum extent. If you count less, the bacteria will reproduce slowly and the safety will be improved. When the leftovers are reheated, they must be heated to above 70 degrees. What do you mean the food is completely heated? For meat, it usually means that the central temperature is above 72 degrees. If it is heated by microwave, it should be above 60 degrees. Because microwave itself has bactericidal effect, it doesn't need to be so hot to ensure the safety of rice.