Named for Don Felipe Camarena, the man who established La Alteña Distillery in 1937 and where El Tesoro is distilled today. The agaves used in its production are 100% estate-grown agaves from Los Altos (aka Highlands) of Jalisco. After the agaves cook for three days in a horno (oven), they are then crushed by a two-ton tahona stone. Fermentation and distillation includes not only the aguamiel (cooked agave juice), but the fibers and pulp. It is distilled to proof meaning no water is added.