squeezed lemon or lime juice

Squeezed lemon or lime juice is the freshly expressed liquid extracted from the fruit of Citrus limon (lemon) or Citrus aurantifolia/Citrus latifolia (lime), citrus species belonging to the Rutaceae family. Both fruits originated in Asia—lemons in Southeast Asia and limes in tropical regions—and are now cultivated worldwide in temperate and tropical climates. Fresh-squeezed juice is characteristically acidic, with lemons averaging 2–3% citric acid and limes slightly higher at 2.5–3.5% citric acid. Lemons produce a tart, bright yellow juice with assertive acidity, while limes yield a more herbaceous, piercing liquid that ranges from colorless to pale green depending on ripeness and cultivar. The juice contains minimal pulp when properly strained and provides the characteristic sour component essential to countless culinary preparations.

Fresh-squeezed lemon and lime juice function as primary souring agents across global cuisines, replacing vinegar or other acidic ingredients where bright, clean acidity is desired. Lemon juice is fundamental to Mediterranean cooking, appearing in vinaigrettes, marinades, fish preparations, and desserts; lime juice dominates Latin American and Southeast Asian cuisines, integral to ceviches, cocktails, curries, and dressings. Both juices are used to arrest oxidation in fruits and vegetables, brighten vegetable and grain dishes, balance rich sauces, and provide the acidic component in emulsions. The juice can be used raw in dressings and beverages or heated in reductions and cooked dishes; timing of addition affects both flavor intensity and preservation of vitamin C content.