Citric acid is a weak organic acid found in citrus fruits. It is a natural preservative and is also used to add an acidic (sour) taste to foods and soft drinks. In the culinary world, it acts as a flavor enhancer and a preservative in many food items, including processed foods such as drinks and soft drinks. Its tart flavor makes it suitable for the creation of specific candies. Citric acid is used in many processed foods to: Preserve food by slowing or preventing the growth of bacteria, mold, yeast, and fungus Retain a food's color, flavor, and texture Balance the pH level of a food or beverage Add a sour taste to soft drinks and other food items Citric acid is a mild organic acid that can be used to clean and deodorize many areas of the home