provide in a Copita About Añejo Tequila Añejo ("aged") Tequila is aged in picket barrels (commonly aged Bourbon barrels) for no less than 12 months. The best-high-quality añejos are aged 18 months to a few decades https://ztndz.com/story20395818/the-fact-about-gran-centenario-tequila-wiki-that-no-one-is-suggesting