Citric acid is a weak organic acid found naturally in citrus fruits such as lemons, limes, oranges, and grapefruits. It's commonly used as a food additive and preservative due to its sour taste, pH adjusting properties, and ability to inhibit the growth of bacteria and mold.
Citric acid is widely used in the food and beverage industry as an acidulant, flavoring agent, and preservative. It's often added to soft drinks, fruit juices, candies, jams, canned fruits and vegetables, and other processed foods to enhance flavor, provide tartness, and extend shelf life.