Gran Centenario Cristalino Anejo Tequila Enjoy the ultra-smooth and crystal-clear taste of Gran Centenario Cristalino. This expertly crafted blend of 100% blue agave is expertly crafted in small batches, then carefully finished in Calvados casks and filtered through a meticulous process that includes Mexican silver. Gran Centenario is crafted using a blend of our finest and most expensive tequilas, which are then finished in calvados casks for a smooth, crystal-clear tequila of unparalleled quality.