1, electric lunch box.
The electric lunch box can not only keep warm, but also be used for steaming eggs and boiling milk, with various functions; Microwave ovens don't have to wait in line, so it's convenient to heat meals. Just add water and plug in a wire to heat them, and the power will automatically turn off after heating. Food-grade PP heat-resistant materials are usually used to protect the environment and keep the original flavor of food.
Adopt the design of fresh-keeping box container, which is convenient to use, beautiful in appearance and easy to carry. You can't tell it's a lunch box unless you look carefully. It is convenient to cook the meal the night before and heat the lunch box at noon the next day.
Electric lunch box is a new type of lunch box, which has the function of heat preservation and heating, good sealing and convenient carrying. The only disadvantage is that the heating time is long, which usually takes about 15 minutes.
2, insulated lunch box.
The insulated lunch box is an ordinary lunch box with an insulated shell, which consists of an inner layer and an outer layer filled with foam plastic, and then the inner layer is plated with a metal film, which has good insulation performance; You can eat it directly when you open it, saving the time of waiting in line for the microwave oven; The price is relatively affordable, nutritious and healthy.
However, the insulated lunch box has a disadvantage that the food will be too soft after a long sealing time, which will affect the taste; Unless it is a particularly good quality insulation box, the insulation time is limited. For example, if the food prepared the night before is put in an insulated lunch box, it may get cold at noon the next day.