Self heating food package, we can also name it as spontaneous heating bag or instant heating bag, some others call it as water reaction heating bag or un-inflamable heating bag, it consists of non-woven cloth bag and heating materials which including aluminum powder, Sodium Hydrogen carbonate, Calcium oxide and other additives, the reaction principle is that the heating ingredients reacts with normal temperature water through a thermal reaction for releasing heat, the heated water produces sufficient steam to heat the food to 60-98℃, usually the heating time will be lasting about 10-15 minutes, this reaction takes in the outside heating container that does not contact with the food that isolated in the food container, the nutrition of the food is not damaged and the taste and texture of the food are kept as the original.

When in using the heating package to heat the food or drink, the specially made container is necessary that it has a special structure of 3 parts including the outer heating container, inner food container and the lid, all the 3 parts are made of the disposable plastic material or bio-degradable plastic material, some heating containers can be made from the disposable plastic bag or paper bag which will be customized according to the product designing and the characteristic of the food or the drink.

Self-heating food package is not restricted for using by time and place, it is safe and reliable, long time heating, high heating efficiency, long shelf life and environmental sanitation that can meet the requirements of a lot of areas for different consumers. It is convenient to be used in environment as military training, out-door simple cooking (camp, fishing, hiking and so on), traveling cooking, emergency food heating without fire, specially for the winter out-door conditions, it can be made for the disaster relief food, takeaway food, instant food for daily working or outdoor works.

The self heating package can be made as 30g/bag, 40g, 50g, 60g, 70g, 80g, 90g, 100g, 110g, 120g per package or made according to the requirement from the user, which is depending on the food or drink that will be heated, for example, it can be used for heating the food and drinks including Water, Rice, Coffee, Milk, Tea, Noodles, Canned food, Packed food, Hot Pot Food, Beverage and so on.

More and more food enterprises are developing new instant heating food set, for example the famous instant hot pot, instant working lunch food set, instant hot coffee, instant hot milk, instant heating noodles and the like, it is becoming popular and popular.