Overview
The lemon is the yellow, ellipsoidal fruit of the small evergreen tree Citrus limon, native to Asia. Its juice is approximately 5% to 6% citric acid, giving it a sharp, sour taste. The fruit is used globally for its juice, pulp, and rind in both culinary and non-culinary applications.
Origin and history
The lemon is believed to have originated in the foothills of the Himalayas, in northeastern India, northern Myanmar, and southwestern China [1]. It spread westward through the Middle East and into Europe, likely via Arab traders, and was established in the Mediterranean by the early medieval period. Lemons were introduced to the Americas by Christopher Columbus in 1493 and became widely cultivated in California and Florida by the 19th century. The exact hybrid parentage of Citrus limon is debated, but it is thought to be a cross between citron (Citrus medica) and sour orange (Citrus × aurantium).
Varieties and aliases
- Eureka lemon (common supermarket variety, year-round)
- Lisbon lemon (similar to Eureka, more cold-tolerant)
- Meyer lemon (Citrus × meyeri; a sweeter, less acidic hybrid of lemon and mandarin or pomelo)
- Femminello (Italian, high juice content)
- Verna (Spanish, large fruit)
- Yen Ben (Australian, thin-skinned)
Culinary uses
Lemon juice and zest are used to add acidity and brightness to a vast range of dishes. The juice is a key component in marinades (shish taouk, chicken kabob), dressings, sauces (hummus, Lebanese garlic sauce), and beverages (lemonade, sharbat-e behlimoo). The rind is candied, grated into baked goods, or preserved in salt (Chinese salt-preserved lemon). Lemon slices or wedges are served as a garnish for fried foods (aji furai), grilled meats, and seafood. The peel is used to flavor desserts like arroz con leche and awameh syrup.
Cross-cuisine context
Lemon is a universal acidulant, but its role varies significantly across cuisines. In Mexican cuisine, the closest analogue is the Mexican lime (Citrus × aurantiifolia), which is used more frequently and in larger quantities than lemon. In Filipino cuisine, calamansi (Citrofortunella microcarpa) serves the same souring function in dishes like bistek tagalog and sinigang. In Persian and Arabic cooking, dried lime (limoo amani) and sumac provide sourness in contexts where fresh lemon would be used in Western cooking. In Vietnamese cuisine, lemongrass (sả) provides a citrusy aromatic note, but the fruit itself is less central than lime. In Russian cuisine, sorrel provides a sour green note in soups where lemon might be used elsewhere.
Notes for cooks
- One lemon yields roughly 2 to 3 tablespoons of juice and 1 to 2 teaspoons of zest.
- Roll a lemon firmly on the counter before juicing to release more juice.
- Store lemons at room temperature for up to a week or in the refrigerator for up to a month.