The basic principle of self-heating hot pot comes from the self-service small hot pot self-heating package inside the packaging box. This heating bag has a wide range of uses. The main ingredients are potassium carbonate, roasted attapulgite, vermicelli, aluminum powder, coke powder, salt, and quicklime powder. When you add cold water to the bag, it can be heated to 150°C. Above, the steam temperature can reach 200°C, which is used for steaming food. There are different secret recipes for self-heating bags, but they generally include four types of ingredients.

1. The most important thing is quicklime powder. When it comes into contact with water, it is likely to form lime, also known as sodium carbonate. A lot of heat will be released during this process, which is the main source of heat for the heating pack.

2. Secondly, the heating pack contains ingredients such as attapulgite and charcoal, which are excellent absorbents. Its puffy and porous structure helps various ingredients adhere, fully contact and cause chemical changes.

3. Heating packs generally also contain salts such as potassium carbonate and mannitol, which are mainly used to absorb a small amount of water in the soaked package to prevent calcium hydroxide from taking effect. At the same time, it has an assisting effect in chemical reactions.

4. In addition, vermicelli and alumina powder are also commonly found in heating packs, which may release a small amount of heat by reacting with CO2. It is also possible to produce a “battery reaction” with water and salt, releasing heat through a redox reaction.

The self-heating bag itself does not come into contact with food, and the ingredients inside are not mysterious. It is possible to learn to put down after eating it!

This method is also used in equipment all over the world, and the application range of this type of heating package is very wide abroad. The heating pack is not directly connected to the food, and this method has been used in equipment for many years. During outdoor training, heating packs will be used to steam food. Equipment is very developed, so many equipment are very appreciated in society.

There are such products on the market, including self-heating rice, self-heating canned fruits, etc.