Specific explanation:
The heating principle of self-heating rice and self-heating chafing dish is to generate heat through chemical reaction. Generally speaking, they contain a heating package or heating element, which is usually made of graphite, magnesium powder, iron powder and other materials. When the heating package is torn or activated, the heating element reacts with water in the package or moisture in food, thus generating an exothermic chemical reaction.
When the material in the heating element reacts with water, an oxidation reaction will occur. For example, the reaction of magnesium powder with water will produce hydrogen and heat, which is called the oxidation reaction of magnesium. This reaction will last for a while, releasing enough heat to heat the food.
It is worth noting that the heating elements of self-heating rice and self-heating pot are usually designed and measured accurately to ensure the safety and controllability of the heating process. The chemicals in the heating package have passed the food safety inspection and certification, and the quality is strictly controlled in the production process.
Matters needing attention in eating self-heating hot pot
1. Select high-quality products: When buying self-heating hot pot, choose products produced by regular manufacturers to ensure product quality and safety. At the same time, read the product manual carefully, understand the usage and precautions, and avoid the danger caused by improper operation.
2, to avoid high temperature burns: self-heating hot pot in the heating process, will produce high temperature, easy to burn the skin. Therefore, in the process of operation, wear heat-insulating gloves to avoid direct contact with the bottom of the hot pot.
3. Keep ventilation: During the heating process, the self-heating chafing dish will generate a certain amount of steam. If it is used in a closed space for a long time, it may lead to humid air and affect the use effect. Therefore, when using self-heating hot pot, keep indoor ventilation.
The heating principle is to use the material in the heating bag to contact with water to release heat, so that the temperature of the food in the feeding pot will rise after absorbing heat. Because the bottom temperature of the self-heating pot is relatively high when heating, it is best to add a layer of insulation pad on the desktop when heating to prevent the glass from breaking or leaving traces on the desktop.