Tequila and its Law

Agave tequilana Weber var. azul is native to the Jalisco region of western Mexico, where its cultivation and spirit production has been documented since at least the 16th century, building on a much older Mesoamerican tradition of fermenting agave sap into pulque. The denomination of origin for tequila was established in 1974, the first granted to a Mexican spirit.

Tequila is a distilled spirit produced from the cooked, fermented sugars of a single agave variety, Agave tequilana Weber var. azul — the blue agave — and is governed by one of the oldest and most precisely written spirits denominations in the Americas, NOM-006. The plant grows in the red volcanic soils of the Jalisco highlands and lowlands, and in smaller authorised zones across parts of Guanajuato, Michoacán, Nayarit and Tamaulipas. It takes seven to twelve years to reach harvest maturity. At that point the jimador strips away the pencas — the long, spine-edged leaves — with a curved tool called a coa, leaving the piña, the dense starchy heart that can weigh anywhere from 35 to over 90 kilograms. This is not a fast-cycle crop. Every bottle of tequila represents years of soil, weather and skilled field judgement before fermentation begins. Once harvested, the piña is cooked — in traditional brick or stone ovens (hornos) or, at industrial scale, in autoclaves — to convert complex fructans into fermentable sugars. The cooked agave is then crushed or milled; the resulting juice, called mosto, is fermented and distilled twice, producing a spirit that Mexican law requires to be bottled between 35% and 55% ABV. NOM-006 draws the critical legal line between two categories. A spirit labelled simply 'tequila' must derive at least 51% of its fermentable sugars from Agave tequilana Weber var. azul; the remaining 49% may come from other sugars, typically cane or corn. This category is commonly called mixto, though that word does not appear in the regulation. A spirit labelled '100% agave' or '100% de agave' must derive all fermentable sugars from the designated plant. The distinction is not merely technical. Mixto tequila is legal and often drinkable, but it dilutes the terroir and character that the agave itself carries. For serious cooking and drinking, 100% agave is the benchmark. Within both categories, the regulation recognises five age expressions. Blanco (also called plata or silver) is unaged or rested no more than 60 days in stainless or neutral oak; it carries the clearest expression of the agave itself — grassy, peppery, mineral, sometimes with a cooked vegetable note from the piña. Joven (or oro) is typically a blanco blended with aged tequila or with caramel colouring and oak extract; it is useful for mixed drinks, not for evaluating the base spirit. Reposado is rested at least two months in oak and acquires a softer, rounder profile without losing the agave signature; this is the most broadly useful category at table and in the kitchen. Añejo is aged at least one year in barrels of no more than 600 litres; it deepens toward vanilla, dried fruit, light spice. Extra añejo, aged at least three years, approaches the complexity of a careful wood-aged whisky or brandy, at which point the agave recedes and oak dominates. The agave's natural home divides between two terroir zones with genuine sensory consequences. Lowland (valles) agave, grown in the flatlands around the city of Tequila itself, tends to produce earthier, more herbal, sometimes slightly sweeter spirits. Highland (los Altos) agave, grown at elevations above 2,000 metres in the municipalities around Arandas and Tepatitlán, tends toward floral, more citric, fruit-forward character. Neither is superior; they are different arguments made by the same plant in different soils. Tequila's relationship to the kitchen is direct. Blanco enters marinades for grilled proteins, where its pepper and mineral edge cuts fat without dominating. Reposado carries into sauces where a gentle wood note is useful. At table, blanco alongside raw preparations — ceviche, aguachile, fresh salsas — is not an accident of fashion; the agave's acidity and bite align structurally with lime and chile heat. Extra añejo belongs to its own glass, sipped without ceremony added.

Blanco tequila from 100% agave carries the clearest expression of the plant: cooked agave pulp (sweet, earthy, faintly vegetal), raw green pepper, white pepper, mineral lift, sometimes citrus zest. Reposado softens the raw edges with light vanilla and toast from oak contact while preserving the agave core. Añejo and extra añejo shift weight toward caramel, dried fruit and spice, with agave becoming a supporting note. Mixto tequila tends toward a blunter, less defined profile with a sharper ethanol finish. The lowland/highland terroir divide is genuine: highland spirits run more floral and fruit-forward; lowland spirits run earthier and more herbal. At high ABV, alcohol itself masks aroma; the 38–40% bottlings common in export markets can mute the plant's character compared with higher-proof expressions.