Mezan Jamaica XO Rum is the brand's extra-old expression, blending Jamaican rums from several different distilleries aged between 4 and 23 years. After blending, the rum is aged in ex-bourbon oak casks to marry the flavors before bottling. Mexan Jamaica XO is a limited run, consisting of just 5000 bottles, but it's notable for its reasonable price despite that scarcity.
Mezan prides itself on producing completely unadulterated rum, using no artificial coloring, added sugar, or other flavorings—all that's in the bottle is rum and water. As a result, their rums tend to be light in color for their age, reflecting a more natural hue than the dark rums to which most of us are accustomed.