The heating packs for self-cooking hot pots have different formulas, but generally they are mainly composed of quicklime, activated carbon, iron powder, aluminum powder and other ingredients. Quicklime will release a large amount of heat when it comes into contact with water, which is the main heat source of the heating pack. source.

Activated carbon is an adsorbent, which is conducive to the attachment of various active ingredients, full contact and chemical reactions. Iron powder and aluminum powder can release a small amount of heat by reacting with oxygen. The heating package is packed with high-density non-woven fabric. If there is no flame, it will basically not reach the state of spontaneous combustion.

Self-heating hot pot uses food self-heating technology, which is also used for self-heating rice. The self-heating hot pot is a sandwich structure, with the upper lunch box used to hold ingredients and water, and the lower layer used to hold the heating pack.

First place the ingredients on the upper layer and add water, then take the heating pack out of the sealed plastic bag, place it on the lower layer and add some water. Then quickly put the upper lunch box in place, close the lid, open the ventilation holes, and wait for the lower heating pack to take effect. You can eat it in 10 to 15 minutes.

Extended information

If you want to eat self-heating hot pot safely, please pay attention to:

1. The water heated after the reaction of the heating pack cannot be reused, and avoid using it. Wash your hands or food, etc.;

2. Do not place it on ordinary glass, otherwise it may cause the glass to break;

3. Be sure to open the ventilation holes to discharge hot air to prevent the inside of the box. Excessive pressure may cause a small explosion;

4. Try to place it on a horizontal surface for consumption to prevent hot water containing chemical substances from overflowing;

5. Reactants after use of the heating pack It is not environmentally friendly and is recommended to be recycled after cooling.

People's Daily Online - How to eat self-heating hot pot safely