Heating element is a chemical compound that reacts with water and hydration to generate heat and is also called the 3rd energy. Principle: As calcium carbonate does not dissolve in water, sodium hydrogen carbonate reacts with water to generate 1st heat, the gas from 1st heating reacts with calcium carbonate dissolve into water to generate 2nd heat, and the remaining constituents, excluding calcium carbonate and sodium hydrogen carbonate, react with water to generate 3rd heat. With the development of food culture and rapid industrialization, various retort and instant foods have been developed and consumed. These foods are increasingly used with the popularity of various outdoor activities. However, these foods are designed to be refrigerated and need fire, boiled water, or microwave to be reheated. As it is impossible to start fire in most outdoor environments, especially in military trainings or in disasters, our heating element can be a very convenient alternate energy source. The heating element consists of eco-friendly materials and does not cause environmental pollution after disposal. Instead, it revives acidic soil into fertile alkali soil. MOQ for 120g of Heating Element = 70,000 pieces MOQ for 60g of Heating Element = 170,000 pieces MOQ for 30g of Heating Element = 210,000 pieces.