self-heating hotpot. According to the consumer survey report, the heat of self-heating hot pot has increased in recent years, and the best semi-finished product sold in supermarkets is self-heating hot pot, so selling self-heating hot pot is the most profitable. Self-heating chafing dish is a kind of fast food. Self-heating hot pot does not need fire or plug in electricity, and it is mainly composed of ingredients, an ingredient pot, a pot cover, an outer pot and a heating bag.