Food can be heated with the aid of electric lunch boxes without the use of a microwave or any other heating apparatus. In order to heat food, electric lunch boxes must have a plug that is connected to a power cord and, obviously, a power source. Despite how convenient they may seem, electronic lunchboxes have a number of drawbacks. Every time you want to heat meals, you have to look for a power source. Children should not use these tiffin boxes because power is involved. In fact, electric lunchboxes are not permitted in schools, just like any other gadget. When utilizing an electric lunchbox, there is also a potential of getting shocked, the fuse burning out, and possible cord and plug damage.