A slightly acidic taste is especially refreshing when you’re very thirsty. Therefore, many drinks have added acidifiers.

Phosphoric acid offers two advantages. Firstly, it has a high acidic content, and so only a small amount is needed. Secondly, unlike organic acids such as citric acid, phosphoric acid is tasteless, and so does not alter the taste of the final product. Phosphoric acid is also essential in cola drinks. It is one of the most important ingredients, and part of the characteristic fresh taste.