Citric acid anhydrous is a food-grade compound derived from citrus fruits, predominantly lemons and limes. Recognized for its versatile applications in the food and beverage industry, citric acid anhydrous is a crystalline powder with a sour taste. It serves as a natural acidulant, pH regulator, and preservative, contributing to the tartness and preservation of numerous food products. Beyond its use in the culinary world, citric acid anhydrous finds applications in various industries, including cosmetics, pharmaceuticals, and cleaning products, due to its chelating and antioxidant properties. Its wide-ranging functionality, natural origin, and safety make it a ubiquitous ingredient, enhancing flavors, extending shelf life, and serving diverse purposes in both consumable and non-consumable products.