What is the principle of self-heating hot pot?

The self-heating small hot pot of "a cup of cold water for hot pot" can be said to be an Internet celebrity food. This kind of hot pot does not require fire or electricity. It only needs a bottle of water. It takes about 15 minutes to eat a small hot pot. Because of its convenient operation and many flavors, it is loved by many consumers. However, is there any safety hazard in this self-heating convenient hot pot?

The heating principle of self-heating small hot pot

To

Self-heating convenient hot pot is mainly composed of ingredients, ingredient pot, pot cover, outer pot and heating bag. The "self-heating key" of self-heating hot pot lies in the flameless heating device-using the substances in the self-heating package (the main components are iron powder, aluminum powder, calcium oxide, coke powder, activated carbon and quicklime, etc.) to contact and react with water to release The heat increases the temperature of the food in the upper cooking pot after absorbing the heat.

Are there any safety hazards in self-heating small hot pot?

To

Someone has conducted experiments on self-heating hot pot samples to test its safety. The experimental items include inspection of appearance and packaging logo, surface temperature of the pot body, gas released by the reaction of the heating package with water, the second water addition reaction of the heating package, and the components and content of the heating package.

After heating, the initial reaction of some samples is relatively violent, and the temperature rises rapidly. Judging from the maximum temperature at each point, the temperature of the inner bottom surface of the outer pot is generally higher, all above 70 degrees, and the highest is 90 degrees. The test also found that among the food containers sampled and tested, 30% of the sample food containers showed varying degrees of deformation at the bottom of the food pot during the heating process.

The results show that self-heating convenient hot pot products have the characteristics of self-heating and continuous high temperature. Regarding the safety management of such products themselves and the heating packs contained in them, my country has not issued relevant national and industry standards to regulate them, and there are certain safety hazards.

The test group tested the gas released when the heating pack reacted with water and found that it contained hydrogen. Judging by the experimental model, in a closed car, the hydrogen released during the use of self-heating and convenient hot pot, once encounters an ignition source, such as lighting a cigarette, turning on the air conditioner, and starting the engine, there is a hidden danger of deflagration.

Therefore, before using the self-heating hot pot, you must read the product instructions and strictly follow the instructions, especially not to use it in a closed and narrow environment such as a car, and avoid open flames; there is a vent on the lid of the self-heating hot pot. If the vent hole is blocked, it is easy to cause a small explosion or even burn people. You must open the vent hole to let it have a pressure relief place; if you use a glass dining table at home, it is best to add it under the self-heating food. Heat insulation pad to prevent glass from bursting; never put it in a place where children can reach.

In addition, the convenience hot pot garbage after use should avoid a large amount of accumulation or direct contact with water, and should be classified in accordance with the relevant regulations of domestic garbage management. After use, the heating pack should be classified and disposed of as hazardous garbage.

The self-heating hot pot does not need fire or plug in. It is mainly composed of ingredients, ingredient pot, pot cover, outer pot and heating bag. The heating principle is to use the material in the heating pack to contact water to release heat, so that the temperature of the food in the upper cooking pot will increase after absorbing the heat. In addition to "self-heating hot pot", it is also called "micro hot pot", "clear boiling hot pot", "self-cooking hot pot" and so on.

This product, which first appeared in WeChat Moments, has attracted more and more catering and food companies to join. From making hot pot ingredients to chain hot pot restaurants, many companies have started self-heating small hot pot business. Even the best snack shop sells self-heating hot pot in its flagship store on Tmall. Now go to Tmall, JD.com and other e-commerce platforms to search for "self-heating hot pot", and at least nearly 30 brands will appear.

self-heating hot pot canada  

chinese self-heating rice meals

how does self-heating hot pot work

self heating hot pot nz

self-heating cans chemistry  

self cooking pot

self-heating hot pot chemical reaction

self heating hot pot uk