Espadn agave. Clay pot distilled. Los Siete Misterios Espadin Olla de Barro one of the most traditional production methods in Oaxacan mezcal, using clay vessels instead of copper or stainless steel to produce a distinctively earthy, mineral expression of the Espadn variety.

Los Siete Misterios (“The Seven Mysteries”) was founded to document the diversity of Oaxacan mezcal through expressions that capture specific agave varieties, production methods, and terroir. The Olla de Barro is the brand’s most traditional expression named for the clay pots (ollas de barro) used in distillation rather than the copper pot stills or column stills that dominate modern production.

Olla de Barro distillation is one of the oldest mezcal production methods, predating copper still technology. Porous clay vessels interact with the distillate differently than metal allowing micro-oxygenation and imparting the clay’s mineral character to the spirit. The result is a mezcal with a distinctively earthy, mineral, and slightly softer profile compared to copper-distilled expressions. The production is more labor-intensive, yields smaller batches, and requires more skill from the maestro mezcalero to maintain consistency across clay vessels.

Tasting Notes

• Nose: Cooked agave, smoke, and a distinctive earthiness from the clay pot distillation mineral and complex.
• Palate: Earthy and mineral the clay vessel’s influence producing a softer, more rounded mouthfeel than copper-distilled mezcal while retaining the Espadn’s characteristic smokiness.
• Finish: Clean and lingering the mineral character of the Olla de Barro method persisting through a satisfying close.

Specs

• Producer: Los Siete Misterios, Oaxaca, Mexico
• Agave: Espadn (Agave angustifolia)
• Distillation: Olla de Barro (clay pot)
• Category: Mezcal
• Size: 750ml

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Frequently Asked Questions

• What is Olla de Barro distillation? Clay pot distillation uses porous clay vessels instead of copper or stainless steel. Clay interacts with the distillate through micro-oxygenation and mineral transfer, producing an earthy, softer character not achievable with metal stills. It is one of the oldest mezcal production methods pre-dating copper technology in Oaxacan production.
• How does this differ from copper-distilled mezcal? Copper stills produce a brighter, more defined spirit with cleaner smoke and agave character. Clay pot distillation produces a softer, rounder spirit with earthy and mineral notes from the clay itself. Both approaches use Espadn agave the distillation vessel is the defining variable.
• Is Espadn the most common mezcal agave? Yes Espadn (Agave angustifolia) accounts for the majority of mezcal production due to its relatively faster maturation (78 years vs 1525+ for wild varieties) and reliable yields. The quality of Espadn mezcal varies enormously based on producer artisan producers like Los Siete Misterios treat it with the same rigor applied to rarer varieties.
• What does Los Siete Misterios mean? “The Seven Mysteries” a reference to the complexity and mystique of traditional Oaxacan mezcal production, and the multiple agave varieties and methods the brand documents across its range.

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