c lime juice

Lime juice is the acidic liquid extracted from the fruit of Citrus aurantifolia (Persian lime) and related lime species, native to Southeast Asia and now cultivated globally. The juice is characterized by its bright yellow-green color, sharp acidic flavor (pH typically 2.0–2.35), and aromatic citral compounds. Key varieties include the Persian lime (most common commercially), Key lime (smaller, intensely flavored), and Kaffir lime (used primarily in Southeast Asian cooking for zest and leaves). Fresh lime juice contains approximately 4–6% citric acid and maintains peak flavor immediately after extraction, though it can be preserved through pasteurization or freezing.

Lime juice is a versatile acidic ingredient appreciated for its balance of sourness and subtle sweetness, with floral and slightly herbal undertones that distinguish it from lemon juice.

Lime juice functions as both an acidulent and flavor enhancer across numerous cuisines, particularly in Latin American, Asian, and Caribbean cooking. It is essential in drinks (mojitos, margaritas, daiquiris, Thai iced tea), ceviche preparation, curries, and Southeast Asian sauces (nam pla, fish sauce-based dips). In Mexican cuisine, it brightens salsas, guacamole, and carne asada; in Thai and Vietnamese cooking, it provides crucial acidity to tom yum soup, pad thai, and Vietnamese dipping sauces. Lime juice also serves as a curing agent in raw fish preparations and aids in fat emulsification. Its volatile aromatic compounds are best preserved in fresh juice, though bottled versions offer consistency for professional kitchens.

Common preparations include freshly squeezed juice used immediately, juice reserved in acid baths for ceviche, and preserved juice incorporated into marinades and dressings.