of lemon juice at room temperature
Lemon juice is rich in vitamin C (ascorbic acid) and citric acid, providing antioxidant benefits with minimal calories. It contains trace minerals including potassium and contributes antimicrobial and digestive properties.
About
Lemon juice is the acidic liquid expressed from the fruit of Citrus limon, a small evergreen tree native to Southeast Asia. The juice constitutes approximately 5-6% of the lemon's weight and contains citric acid as its primary acidic component, along with ascorbic acid (vitamin C), malic acid, and various organic compounds that contribute to its characteristic sharp, tangy flavor. Fresh lemon juice is typically pale yellow and translucent, with a pH between 2.0 and 3.0, making it one of the most acidic common food ingredients. When stored at room temperature, lemon juice remains liquid and maintains its acidity and flavor profile for several hours to a day, though refrigeration significantly extends its shelf life.
Culinary Uses
Lemon juice serves as a foundational ingredient across global cuisines, functioning both as a flavor enhancer and a chemical agent in cooking. It brightens savory dishes—particularly seafood, poultry, and vegetables—while its acidity denatures protein in ceviche and other raw fish preparations. In baking and pastry, lemon juice balances sweetness and provides moisture; in sauces and dressings (such as vinaigrettes and aiolis), it emulsifies and adds brightness. The juice is equally valuable in beverages, from lemonades and cocktails to tea and water infusions, and serves as a natural preservative due to its antimicrobial properties.