Duke Tequila Extra Anejo Founder’s Reserve 3 Year is a testament to the art of tequila aging and blending. Aged for a remarkable 3 years, this tequila is crafted from 100% pure single pia harvested blue agave. The aging process takes place in 2nd use American oak whiskey barrels, imparting complexity and depth to the spirit. To achieve its unique character, it is further refined in 3rd use French Grand Cru wine barrels sourced from renowned cooperages such as Taransaud and Demptos. The grapes for these barrels come from prestigious wine appellations, including St. Helena, Howell Mountain, and Rutherford.