The heating pack manufacturer simply introduces the difference between self-heating lunch boxes and heat preservation lunch boxes:

The self-heating lunch box is a new generation of lunch boxes. It has the characteristics of good food acceptance, short heating time, high quality, no need for fire, no need for electricity, etc. It is mainly used by troops under certain conditions, and the heat output can meet the needs of national defense work efficiency.

During outdoor activities, when it is difficult to use fire or it is forbidden to use fire due to adverse weather such as strong wind, sand, rain and snow, and low temperature, this product can easily heat food, including in the trunk and outdoor tent. The water required for the heater to work is only about 100ml, and purified water is not required. The total amount of two components in each recipe of the new generation of food is about 500g-570g. If it is taken with other food, drinking water or soup, each recipe can meet the needs of 2-3 people, which is economical and affordable.

The self-heating lunch box is a new type of lunch box with heat insulation and heating functions. Some use PP material as the shell and adopt circulating PTC heater for heating. Compared with some traditional lunch boxes or insulated lunch boxes, it has many advantages such as electric heating and convenient to carry.

Insulated lunch boxes are made by adding an insulating shell to some lunch boxes. The inner and outer double layers are filled with plastic foam, and the inner layer is plated with metal film. The heat loss is reduced from three aspects: transmission, radiation, and heat convection. An electric heating device is installed between the lunch box and the shell to make up for the heat loss, so that the food can be kept at a certain higher temperature.

Its characteristics are long insulation and heat preservation time, and it is possible to reheat when you like to eat; fashionable appearance, easy to carry; compared with the insulated lunch boxes on the market, it is definitely cost-effective, the product is low-carbon and environmentally friendly, energy-saving and beautiful.

The above is the difference between self-heating lunch boxes and insulated lunch boxes. I hope it will be helpful to you.