Truly unique, and steeped in history, El Tesoro is one of the last known tequilas to fully embrace the traditional tequila making process. El Tesoro pours passion, heart and skill into our handcrafted tequila, creating a work of Art with Every batch. We slowly age our Añejo tequila in American oak ex-bourbon barrels for two to three years. This aging process imparts a stronger influence of oak but still allows the spirit to maintain the complexion of agave.