Tequila Penca Azul, is the masterpiece of four generations of the Ruiz Family of Mexico. It is the result of 100 years of experience in the art of making fine tequila. Penca Azul is made from the blue agave plant, a noble plant that grows mainly in the valley of the Los Altos region (highlands) in the state of Jalisco. The plants, when ripened, are cooked in brick ovens, fermented naturally and doubled distilled.