How the self heating food packaging to heat the foods
The principle of food self heating pack is to use chemical reactions to generate heat. Usually, food heating packs contain substances such as iron powder, salt, and activated carbon. When heating food, activate the food heating package by kneading it. During the activation process, iron powder and oxygen undergo an oxidation-reduction reaction, generating heat. At the same time, substances such as salt and activated carbon act as catalysts, accelerating the reaction. This chemical reaction will last for a period of time, causing the food heating package to continuously generate heat, thereby heating the food. Food heating packs are a safe and convenient way to heat food, suitable for outdoor activities and emergency food heating needs.
