Soft drinks, also known as cool drinks and non-alcoholic drinks, refer to natural or artificially prepared drinks with alcohol content below 0.5%. Its main raw materials are drinking water or mineral water, fruit juice, vegetable juice or extracts of roots, stems, leaves, flowers and fruits of plants.

There are many kinds of soft drinks, which are divided into carbonated drinks, juice drinks, vegetable juice drinks, lactic acid drinks and solid drinks according to raw materials and processing technology. According to the nature and drinking objects, it can be divided into special drinks, health drinks, table drinks and mass drinks. Countries around the world usually adopt the first classification, but in the United States, Britain and other countries, soft drinks do not include fruit juice and vegetable juice. Soft drinks are usually sold in bottles and cans for shops, or sold separately by a machine called a soda gun.