Hamburg is the transliteration of English Hamburger, which is the main food in modern western fast food. The earliest hamburgers were mainly composed of two buns and a beef pie. In modern hamburgers, besides traditional beef pies, there are butter, mustard, ketchup and salad dressing. Wrapped in the second layer of steamed buns, and then sandwiched with tomatoes, onions, vegetables, pickles and other foods, so that the main and non-staple foods can be eaten at the same time. This kind of food is convenient to eat, delicious and comprehensive in nutrition, and has now become one of the convenient staple foods in the world. Hamburg is high in calories and contains a lot of fat, so it is not suitable for people who lose weight or people with high blood pressure and hyperlipidemia to eat too much.