Gran Centenario Anejo Is Distilled From Carefully Selected Blue Agave And Aged In New Oak Barrels To Achieve A 100% Agave Tequila Of Unparalleled Smoothness And Quality.This añejo tequila from Gran Centenario is a 100% blue agave and aged in new French Limousin oak barrels up to 36 months. It is unusual to see this type of oak used for tequila production and is more typically found used to age Cognac. The agaves used were sourced from Los Altos in Jalisco.