It's called old Beijing copper pot to rinse meat. According to the relevant public information, Beijing hot pot is also known as old Beijing copper pot hotpot, or mutton hotpot for short. Internationally, it is also called Mongolian hot pot, because their origin and form are basically the same. Beijing hot pot is mainly made of mutton, so it is also called instant mutton. The chafing dish is made of copper, and charcoal is used as fuel. Its pot shape is very special. In fact, the "hot pot" icon used in many visual designs is Beijing hot pot instead of Chongqing hot pot. The bottom soup of Beijing hot pot has no taste, but it shows the exquisiteness of the ingredients themselves. However, the sauce is very classic, which is made up of sesame sauce, vinegar, leek sauce, fermented tofu, soy sauce, coriander powder, Chili oil and leek powder.