Solera: An aging process used in the production of some rums, sherries, and ports, to provide a consistent product from year to year. The solera system involves a pyramid of casks. The top tier is the young stuff, fresh off the still. The bottom layer of casks is mature and ready to bottle. Middle tiers are the middle children. A limited amount is drawn off and bottled from the bottom tier. Rum from the second-lowest layer is moved into the bottom layer, to blend and meld with the older product. Rum then “cascades” from higher layer to lower, each level blending with the older layer below.
Historic and Modern Rum Regions
Caribbean Basin: The birthplace of rum. Styles vary throughout this region, from light and crisp rums to rich, vegetal agricoles.
Mexico: Rum is a relatively new spirit in Mexico; Bacardi has a growing presence there, and you may be able to find an independent brand named Ron Los Valientes.