teaspoon lemon juice

ProduceLemons are available year-round in most markets, though fresh supplies peak from winter through early spring in the Northern Hemisphere. Bottled and frozen lemon juice is available year-round.

Lemon juice is rich in vitamin C (ascorbic acid) and citric acid, providing antioxidant benefits and supporting digestive function. A teaspoon contains minimal calories (approximately 3) but delivers notable amounts of citric acid.

About

Lemon juice is the acidic liquid extracted from lemons (Citrus limon), a small, oblong citrus fruit with thick, textured yellow skin. Native to Asia, lemons are now cultivated globally, with major production in Mediterranean regions, California, and Argentina. The juice comprises approximately 5-6% citric acid, which provides its characteristic sharp, sour flavor, along with subtle floral notes. Fresh lemon juice is bright, aromatic, and intensely acidic, while bottled and concentrated versions offer convenience but diminished aromatic complexity and fresher flavor.

Lemons contain two main juice varieties: those from fully ripe fruits (higher sugar content, mellower acidity) and those from slightly underripe lemons (maximum tartness and acidity). The juice's composition—citric acid, ascorbic acid (vitamin C), and volatile aromatic compounds—makes it both a flavoring agent and functional ingredient in cooking.

Culinary Uses

Lemon juice functions as a fundamental acid component in global cuisines, brightening dishes, preventing oxidation, and balancing rich or sweet flavors. It is essential in vinaigrettes, marinades, and sauces (hollandaise, béarnaise, beurre blanc), where it provides acidity and depth. In Mediterranean, Middle Eastern, and Asian cooking, lemon juice is used in dressings, seafood preparations, and as a finishing acid. Beyond savory applications, it features in desserts, beverages, and preserves. Fresh lemon juice is preferred in most applications for superior flavor; it is typically added at the end of cooking to preserve its volatile aromatic compounds and prevent bitterness from prolonged heat.

Forms & Preparations

Fresh-squeezed — Juice extracted directly from fresh lemons by hand or mechanical press; highest flavor and aromatic quality.
Bottled pasteurized — Commercially processed juice, often with added preservatives; stable shelf life but diminished aromatic freshness.
Frozen concentrate — Concentrated juice that requires dilution with water; convenient for longer storage with moderate flavor retention.
Dried or powdered — Dehydrated lemon juice used as a seasoning in dry rubs and spice blends; concentrated flavor but lacks fresh aromatic qualities.
Preserved lemon (preserved in salt and juice) — Fermented whole lemons used in North African cuisines; intense, complex flavor suitable for tagines and grain dishes.

Substitutes

Unknown — Slightly more intense acidity and different aromatic profile; use in equal ratio as a direct substitute, particularly in Southeast Asian and Latin American cuisines.
Unknown — Use at approximately 50% of the lemon juice volume; provides acidity but lacks the aromatic complexity and subtle sweetness of citrus.
Unknown — Use in equal or slightly larger quantities; provides acidity with additional flavor complexity, suitable for sauces and marinades.
Unknown — Use approximately 1/4 teaspoon for 1 teaspoon lemon juice; provides acidity but lacks the aromatic compounds and subtle flavor of fresh juice.
Unknown — Use in equal or slightly larger quantities; provides milder acidity with sweeter flavor, suitable for certain applications like marinades and desserts.