squeeze of fresh lime juice

ProduceKey limes peak June through August; Persian limes are available year-round in most markets, with peak season from May through October. Quality and juice yield may vary by season, with peak acidity typically occurring in fruit harvested during warmer months.

Fresh lime juice is rich in vitamin C and antioxidants, providing approximately 15-20% of daily vitamin C requirements per fluid ounce. It also contains trace minerals including potassium and contains compounds with potential antimicrobial properties.

About

Lime juice is the acidic liquid extracted from fresh limes (Citrus aurantifolia for key limes, Citrus latifolia for Persian limes), small citrus fruits native to Southeast Asia and now cultivated globally. The juice contains approximately 5-8% citric acid, giving it a sharp, tart flavor profile with subtle floral and herbaceous notes. Fresh lime juice is characteristically bright yellow-green to clear in appearance, with a pH of approximately 2.0-2.4, making it among the most acidic citrus juices commonly used in cooking.

The juice is typically extracted by mechanical pressing or hand-squeezing whole fruits. Key lime juice is notably more acidic and aromatic than Persian lime juice, with a more pronounced, complex flavor. The acidity varies seasonally and by variety, with fruit picked at peak ripeness yielding juice with optimal balance of acid and subtle sweetness.

Culinary Uses

Fresh lime juice serves as a fundamental souring agent and flavor enhancer across numerous global cuisines, particularly in Latin American, Southeast Asian, and South Asian cooking. It is essential in ceviche preparation, where its acidity cures raw fish, and appears prominently in cocktails, marinades, dressings, and salsas. In Thai cuisine, lime juice is paired with fish sauce and chilies to create essential flavor foundations; in Mexican cooking, it brightens ceviches, guacamole, and salsas; in South Asian cuisines, it adds brightness to curries and daals.

Beyond direct consumption, lime juice brightens dishes at the point of service, prevents oxidative browning of cut fruits and vegetables, and can partially tenderize proteins through acid curing. Its high acidity makes it a natural preservative and a substitute for vinegar in applications requiring fresh citrus flavor without fermented notes.

Forms & Preparations

Freshly squeezed — Juice extracted immediately before use by hand-squeezing or mechanical pressing; contains maximum aromatic compounds and acidity. Preferred for bright, fresh applications.
Bottled (not from concentrate) — Pasteurized fresh lime juice; preserves much of the fresh character with extended shelf stability. Quality varies; typically contains no additives beyond preservatives.
Concentrate — Reduced juice with concentrated acidity and flavor; used in a ratio of approximately 1 part concentrate to 3-4 parts water to reconstitute. Convenient for storage but lacks some aromatic complexity.
Frozen fresh juice — Freshly squeezed juice preserved by freezing; maintains flavor and nutritional profile better than ambient-temperature storage. Thawed before use.
Dried lime powder — Dehydrated lime juice or whole dried limes (loomi) ground to powder; concentrated flavor used sparingly in spice blends, marinades, and dry rubs.
Lime cordial or syrup — Lime juice sweetened and concentrated for beverage preparation; contains added sugars and sometimes preservatives. Diluted with water to create refreshing drinks.