Salt soda is cheaper than pure water because it is simple in cost and easy to make, so it is cheap. The main components of salt soda are water, sugar, edible salt, fruit acid, carbon dioxide and inorganic salts. These are low-cost and simple. Salt soda is also a carbonated drink, which contains carbon dioxide and other carbohydrates. It is suggested that dieters drink mineral water or boiled water when they are thirsty, which will help the body to excrete toxins to some extent. Operating costs, geographical location of the store, etc. It is normal that the price of the same salt and soda in Shanghai is different. The price of any commodity at the time of sale depends on the purchase channel, operating cost, the geographical location of the store and the decoration level of the store. These factors are different, and the final price is different. Shanghai salt soda refers to Chevrolet, a lemon-flavored salt soda drink of Shanghai Shenmei Beverage & Food Co., Ltd., which is a famous brand in Shanghai. As a traditional heatstroke prevention drink, it is suitable for drinking after exercise, high temperature operation or sweating. Its cool, light and refreshing flavor conforms to the healthy and pure consumption trend and is accepted by more and more consumers. The market response is enthusiastic, and it has become the mainstream variety occupying a considerable share of the beverage market.