Rey Campero Espadin uses wild agave Espadin that is fermented in open air with wild yeasts. In true Rey Campero fashion, only the highest quality agave are used in production and the difference between wild agave Espadin instead of the more commonly used farmed Espadin makes a world of difference in this Mezcal. The Rey Campero Espadin is also aged before bottling, which adds complexity and depth. Considering the quality the pricing is absolutely astounding from this legendary distillery in Candelaria Yegole.