Ancestral, artesanal, industrial: the CRM categories explained

Mezcal's Denomination of Origin is governed by the Consejo Regulador del Mezcal (CRM), which defines three production categories. Understanding them is the single most useful frame for choosing bottles.

'Ancestral' is the strictest tier. The agaves must be cooked in a stone-lined pit oven (palenque), crushed by hand or by stone wheel drawn by a horse or mule (tahona), fermented in wood or stone vats with wild yeast, and distilled in direct-fired clay pots (ollas de barro). No modern equipment is permitted at any stage. The category exists to protect pre-industrial production methods; the resulting mezcal is denser, more textured, and harder to scale. Real Minero, Lalocura, and a handful of other producers work almost exclusively in this category.

'Artesanal' – the category most of the interesting bottles on the US market fall into – permits copper stills alongside clay, and allows mechanized crushing only at the wooden mill stage (not electric shredders). Stone-lined pit ovens are still required, and fermentation must still be wild. Most of the wild-agave bottles you'll encounter from Del Maguey, Mezcal Vago, Rey Campero, El Jolgorio, and NETA are artesanal.

'Mezcal' (unqualified) – the third category – permits industrial production: autoclave cooking, diffuser extraction, cultivated yeast, continuous distillation. The category exists so large-scale brands can carry the DO label. Nothing about a 'mezcal' bottling prevents it from being fine – some industrial bottles are technically well-made – but the soul of the category lives in the two stricter tiers.

A practical rule: if a bottle is silent on its category, assume it's industrial-adjacent. The producers working in ancestral and artesanal want you to know they are. A clear category statement on the back label is the first trust signal; the absence of one is the first suspicion.