Dos Maderas 5 Years + 3 Years Double Aged RumDefinition: Double aged old rum. Alcohol content: 37. 5 % Alc. Vol. Production: This rum is first aged for 5 years in American oak casks at its place of origin in the Caribbean (Guyana and Barbados). Then it is shipped to Williams & Humberts installations in Jerez (Spain), where the rum is aged for another 3 years in casks that have previously held the internationally renowned Dos Cortados palo cortado sherry. Tasting notes: This two stage process