All restaurants and restaurants related to eating and drinking can be divided into two types: heavy catering and light catering.

Heavy catering refers to the traditional catering mode, such as dinner cooking, star-rated restaurants, Chinese restaurants and so on. This kind of food generally belongs to heavy catering, because heavy catering focuses on high rent, high salary of personnel, high raw materials, etc., and mainly eats in the hall, only lunch and dinner.

As a popular catering concept, light dining is more common in first-class cities, such as leisure restaurants, take-away restaurants and light meals. Mainly restaurants with standardized dishes, light meals can not only be eaten in class, but also have a large proportion of takeout, which can be opened all day. Many fried chicken shops and tea shops belong to light catering.