Añejo ("aged") Tequila spends 1 to a few years within an oak barrel comparable to the ones employed for getting old Whiskey or wine. It will get smoother, darker as well as the flavor is sweeter due to the barrel. Gran Centenario Leyenda Extra Anejo NOM 1122 Tasted 5/21/07. On this date I attempted this tequila by carrying out a blind tasting at