Tesouro distillery specializes in making hand-crafted rum, one small batch at a time. Only the finest Hawaiian cane sugar and filtered water from the Colorado Rocky Mountains is used in its production. The rum is twice-distilled and Solera aged in American, French, and Hungarian oak Cabernet barrels. There are no machines involved in the production process; every step is done by hand, including labeling, filling, corking, and sealing, to order, one bottle at a time.