Dos Maderas Rum 5 Years + 5 YearsDefinition: Old rum with a three stage ageing process Production: After ageing for five years in the Caribbean and for a further three in the facilities of Bodegas Williams & Humbert in the wood of Dos Cortados (palo cortado), at this point Dos Maderas 5+3 then enters a third and final stage of ageing in casks which have previously been used to mature Don Guido sherry (Pedro Ximenez) for over 20 years, to become the extraordinary Dos Maderas P. X.