Clase Azul Mezcal Durango is made with wild maguey Cenizo, which takes 12-15 years to mature. The maguey Cenizo grows somewhat abundantly in Durango, where this mezcal is made. Clase Azul follows the same traditional palenque distillation process as any other artisinal mezcal. One impressive point about this mezcal is that the agave is milled by hand, rather than using a donkey and tahona.