Citric acid, also known as lemon salt, is a weak organic acid that is commonly used in food and beverage production. It has a sour taste and is naturally found in citrus fruits such as lemons, limes, and oranges. Citric acid is commonly used in food preservation and flavoring, as well as in cosmetic and cleaning products. It is often added to soft drinks, jams, and candies to give them a tangy flavor. Citric acid is also used in cooking and baking as a natural alternative to vinegar or lemon juice. It can be used as a substitute for vinegar in salad dressings or as a natural preservative for canned fruits and vegetables. In addition to its culinary uses, citric acid is also used in the production of cosmetics and cleaning products due to its acidity and ability to remove mineral deposits. It is generally recognized as safe by regulatory agencies and is widely used in the food industry. Overall, citric acid is a versatile and useful ingredient that can be used in many different applications.