Calle 23 starts with the careful selection of blue agave plants, sourced from 'Los Altos de Jalisco' (The Highlands) area, between the town of Tepatitlan and Arandas. In this area, the agave plants benefit from hot and sunny dry periods, followed by heavy rainy seasons, and a fertile soil, high in minerals, which produces richer and higher quality agaves, taking 7 to 9 years to reach full maturity.