Following distillation, Ron Zacapa's Edición Negra is solera-aged through a series of casks that were previously used to mature bourbon, sherry and Pedro Ximenez wine. Solera aging is a process that has traditionally been reserved for aging cognacs, ports and sherries. It involves filling a series of casks at different intervals over a long period of time. As rum from the oldest cask is emptied and bottled, the cask is re-filled with an equivalent amount of rum from the second-oldest cask in the solera. This cascading effect continues until the youngest cask in the solera is filled with new rum. As a result, no cask in the solera is ever fully emptied. Also, as the younger rum cascades through the solera, its average age and complexity gradually increase over time.Ron Zacapa's Edición Negra is a marriage of rums from 6 to 24 years old, extra-aged in an assortment of double charred American oak and Pedro Ximénez wine casks. Expect an explosion of flavors on the palate, with delicious smoky elements, chocolate, and caramelized and dried fruits.