Earlier, it was reported that the bottom of Haidilao pot contained carcinogens, that is, mineral oil was detected in the bottom of these hot pots. The quality of 10 chafing dish bottom material was tested by the evaluation organization "Youke", and it was found that 9 items had minor and major defects (such as possible carcinogenic or definite carcinogenic components) or safety defects. In addition, Consumer Report sent 10 self-heating chafing dish to an authoritative third-party inspection agency for inspection. 10 nitrite was detected in the ingredients of self-heating hot pot. In addition, the contents of MOSH and POSH in seven self-heating hot pot products such as Dezhuang, Donglaishun, Spicy Space, Qiaotou and Little Sheep are also extremely high.