Dos Maderas Rum 5+1 Atlantic 37.5% 700mlDos Maderas Rum 5+1 Atlantic 37. 5% 700ml the entry tier blended rum from Dos Maderas, the Williams & Humbert (Jerez) rum brand that ages Caribbean rum in Spain in former sherry casks. "5+1" refers to five years' Caribbean ageing followed by one further year in Spain. A blend of Caribbean rums (Guyana, Barbados) aged five years on the islands, then transported to Williams & Humbert's Jerez bodegas for one further year in former Palo Cortado sherry