Tequila vs mezcal denomination, agave species, distillation

Tequila and mezcal are both agave distillates originating in Mexico, but they are legally distinct products governed by separate Denominations of Origin (DO) with different permitted agave species, production methods, and geographic boundaries. Tequila is a subset of mezcal in the broad sense, all tequila is mezcal, but not all mezcal is tequila, though Mexican law treats them as separate categories.

Denomination and geography. Tequila holds a Denomination of Origin (DOT) restricted to five Mexican states: Jalisco (where the town of Tequila lies), Guanajuato, Michoacán, Nayarit, and Tamaulipas. By law, tequila must be made from Agave tequilana Weber blue agave, a single species. Mezcal’s DO (DO Mezcal) covers nine states, with Oaxaca producing the vast majority; it permits approximately 50 agave species, including espadín (Agave angustifolia), tobalá (Agave potatorum), tepeztate (Agave marmorata), madrecuixe (Agave karwinskii), and arroqueño (Agave americana).

Production methods. Tequila production is largely industrial. Agave hearts (piñas) are typically steam-cooked in autoclaves or stone-lined ovens (hornos), then crushed by a mechanical shredder or a traditional tahona stone wheel. Fermentation occurs in stainless steel or wood tanks, and distillation is commonly done in continuous column stills, producing a cleaner, less smoky spirit. Mezcal retains pre-Hispanic craft techniques: piñas are pit-roasted in earth-ovens lined with volcanic rock and agave fibers, giving mezcal its characteristic smoke. The cooked agave is crushed by a horse-drawn tahona, fermented in open-air wooden vats, and double-distilled in clay or copper pot stills. Mexican law recognizes three production categories: “ancestral” (entirely traditional, no mechanization), “artisanal” (some mechanization allowed), and “industrial” (modern equipment).

Aging and ABV. Both spirits are typically bottled at 40–50% ABV. Tequila aging categories are: blanco/silver (unaged or aged <2 months), reposado (2 months–1 year), añejo (1–3 years), extra añejo (>3 years), and joven (blend of blanco and aged tequila). Mezcal uses similar aging terms but with less regulatory emphasis; most mezcal is sold as joven (unaged).

Cultural axis. Tequila emerged as a commercial product in post-1800s industrial Jalisco, driven by rail access and international demand. Major distilleries include Patrón, Don Julio, Casamigos, Casa Dragones, and Tequila Ocho. Mezcal traces its roots to pre-Hispanic Oaxaca, where indigenous communities fermented agave for ritual use; modern brands such as Del Maguey, Vago, and El Jolgorio have driven its global popularity, particularly in Los Angeles, where bars like Madre, Damian, and Antigua Bread feature curated mezcal flights.

Related agave spirits. Raicilla (Jalisco, often Agave maximiliana), sotol (Chihuahua, from Dasylirion spp., not true agave), and bacanora (Sonora, Agave angustifolia) are distinct distillates with their own DOs, not covered by tequila or mezcal regulations.

Dietary notes. Both tequila and mezcal are vegan (post-distillation, no animal products used) and gluten-free, as agave contains no gluten. No common allergens are present in the finished spirit.