Why do people put sour in soft drinks?

Soft drinks typically contain a combination of sugar, water, and flavorings. They may also contain other ingredients, such as caffeine, phosphoric acid, and citric acid. Sour flavors in soft drinks are often created using citric acid, malic acid, or tartaric acid. These acids can help to balance the sweetness of the sugar and create a more refreshing flavor. In addition, sour flavors can help to stimulate saliva production, which can aid in digestion. Some people also find sour flavors to be invigorating and thirst-quenching.