““When rum goes into a barrel, the same wonderful interplay of alcohol and wood that makes whiskey so mellow and smooth also happens with rum. But in the tropics, it happens much, much faster. A barrel of rum (often a used bourbon barrel) loses a whopping 7 to 8 percent of its alcohol per year as the wood expands and softens in the steamy heat. What might take twelve years to accomplish in Scotland happens in just a few years in Cuba. For this reason, dark, well-aged Caribbean rums are astonishingly rich and complex after just a short repose in wood.””
