Chamucos Extra Aejo Tequila With its exquisite balance of toasted oak, sweet vanilla and butterscotch, this Extra Aejo Tequila is crafted with carefully selected 3 year old and 4 year old agaves. Elegantly aged in American white oak barrels for up to five years, Chamucos Extra Aejo carries layers of flavors all the way through to the back of your palate. Cask Strength 88.8 proof Chamucos Extra Aejo its a wonderful marriage of carefully selected 3 year old, an incredible 4 year old and a gorgeous 5 year old. It carries an exquisite balance of toasted oak, sweet vanilla and butterscotch, with fruit and spice, shaping its refined character delivering layers of flavors all the way through to the back of the palate.