The balance of bouquet and unique flavors is derived from a blend of aged rums of between 6 and 23 years old, originating from the "Sistema Solera" aging process. These mature rums have been produced only from the sweetest first-crush virgin sugar cane. Ron Zacapa 23 is matured at an altitude of 2300 meters in selected barrels that previously aged robust American whiskeys, delicate Sherries and fine Pedro Ximenez wines.