Throughout the production process, the beverage undergoes three stages of maturation, each imparting unique nuances to its aroma and flavor. The first stage of production involves maturation in American oak barrels previously used for bourbon. The second stage includes a careful selection of the best spirits with varying maturation periods, blending them in small casks (140 liters), reminiscent of the popular 19th-century whiskey maturation. The final third stage involves the whiskey's aging in large European oak casks from Oloroso sherry.