tbs. lemon juice

Lemon juice is the acidic liquid extracted from the fruit of Citrus limon, a small citrus tree native to Southeast Asia and widely cultivated in Mediterranean and subtropical regions. The juice comprises approximately 5-7% citric acid by weight, along with ascorbic acid (vitamin C), sugars, and aromatic compounds that define its characteristic tart, bright flavor. Fresh lemon juice is extracted by pressing or squeezing whole lemons, while bottled commercial versions are either cold-pressed or pasteurized concentrates diluted with water. The juice's color ranges from pale yellow to golden, with a pH typically between 2.0-3.0, making it one of the most acidic common cooking ingredients.

Lemon juice functions primarily as an acidulant and flavor enhancer across global cuisines. It is essential in Mediterranean, Middle Eastern, and Asian cooking, used to brighten fish and seafood dishes, balance rich sauces, preserve color in vegetables, and prevent enzymatic browning in cut produce. Common applications include vinaigrettes, marinades, ceviche, hollandaise sauce, custards, and beverages. The acidity serves critical chemical functions: curing raw fish, coagulating proteins in cooking, and developing flavor in pickling. Fresh lemon juice is preferred for its superior flavor and aromatic qualities; bottled juice is utilized for convenience and consistency in commercial kitchens and shelf-stable preparations.