Can withstand the high temperature of -20 -250 degrees, does not contain any harmful substances, and can keep the original delicious food.
Aluminum foil lunch boxes can be heated by soaking in hot water. Put the aluminum foil lunch box in a bowl filled with hot water, and use the temperature of the water to heat the food inside. Or you can slowly heat the lunch box in the oven. It should be noted that the heat-resistant temperature of aluminum foil lunch boxes is generally 250 degrees, and it is recommended not to adjust the temperature too high during heating.