first of all, hot pot should be thoroughly washed before use. In particular, the copper rust of copper chafing dish must be removed to avoid copper poisoning, mainly manifested as nausea, vomiting, dizziness, shortness of breath and other symptoms. Secondly, it must be cooked thoroughly in boiling soup. Eating hot pot is mostly eaten with raw meat, raw fish and lettuce while rinsing. These foods are easily contaminated by pathogenic microorganisms and parasitic eggs, so they must be cooked thoroughly in boiling soup to achieve the effect of "sterilization and disinfection", thus preventing or reducing the occurrence of digestive tract inflammation and intestinal parasitic diseases. In addition, chopsticks with raw meat and fish and plates with raw meat and fish should be separated from chopsticks with direct entrance and plates with seasonings, and raw and cooked food should not be mixed. Third, the temperature of the imported dishes should not be overheated. The food just taken out of the hot pot should be cooled for a while before eating, so as to avoid scalding the mucosa of the mouth and esophagus, causing ulcers in the mouth and esophagus, or damaging the gums and teeth, causing allergic toothache. Fourth, don't eat hot pot for too long. Sitting there eating hot pot for a long time will make digestive juices such as gastric juice, bile and pancreatic juice secrete constantly, and glands will not get normal rest, which will easily lead to gastrointestinal dysfunction and abdominal pain and diarrhea. Fifth, it is best to make hot pot soup now. Hot pot soup should not be used repeatedly, let alone put the residual vegetable soup in the pot overnight, otherwise the content of nitrite (a strong carcinogen) in the soup cooked for a long time will increase, which is harmful to health after eating. In addition, it is also worth pointing out that people with chronic diseases should pay attention to the following points when eating hot pot: 1. Hot pot materials such as meatballs and shrimp dumplings are rich in oil and protein, and patients with diabetes, hypertension and hyperlipidemia should eat less. 2. Hot pot soup contains a lot of purine and more sodium and potassium ions. People with gout, kidney disease and hypertension should drink less or not. 3. Seasonings such as sand tea sauce and Chili sauce are very irritating to the gastrointestinal tract. People with gastrointestinal diseases (such as stomach diseases, hemorrhoids, constipation or chronic diarrhea, etc.) should use them as little as possible, and it is best to use lighter seasonings such as soy sauce and sesame oil instead. Patients with tuberculosis, throat inflammation, tracheal inflammation, allergic diseases, etc., should also use less or no spicy seasoning.