All of the Cruzan Rums are produced using a modern five column distillation method which produces a light bodied rum, the quality of which can be tightly controlled by the five column distillation. The rum is then aged in once used American oak bourbon barrels.
Cruzan Single Barrel Rum is produced from a blend of vintage rums which have been aged up to 12 years. Once blended the vintage rums are then finished in a new oak barrel for about one year. Barrels are bottled individually with each bottle of rum coming from a single barrel. Because each new barrel will have different characteristics, each bottling will be a little different from the last; but, the general character of each bottling should be similar due to the overall blending process.
Here is a link to my full review:
Review: Cruzan Single Barrel Rum
Please enjoy my review which concludes with my recipe suggestion, El Padrino.
Chimo!
Flor de Caña has a history of rum production which is dated to 1890 at the San Antonio Sugar Mill, in Chichigalpa, Nicaragua. The company was founded by Francisco Alfredo Pellas and today, over 120 years later, the company is led headed by the fifth generation of the Pellas family. It has grown to be not only one of Central America’s leading brands of rum, it is also one of the most recognized rum brands in the world. According to the company website, all of the Flor de Caña rum is produced from molasses which is made from sugar cane harvested in fields adjacent to the distillery in Chichigalpa. This molasses is fermented and then distilled five times in a continuous column still. The resulting distillate is laid down to age in small American white oak barrels in traditional aging warehouses built without air conditioning in an undisturbed environment.
The Diamond Distillery sits on the East Bank of the Demerara River near Georgetown, Guyana. The Distillery, originally attached to the now closed Diamond Sugar Estate, is home to 
Jamaica Lion Rums are produced and bottled by Royal Jamaica Rums who are headquartered in Kingston, Jamaica. Royal Jamaican Rums originated at the Monymusk distillery which is one of the oldest plantations on the Island of Jamaica. It is located on the south side of Jamaica in St. Catherine ‘s Town, and has been producing Rum since the 18th century.
Jamaica Lion Rums are produced and bottled by Royal Jamaica Rums who are headquartered in Kingston, Jamaica. Royal Jamaican Rums originated at the Monymusk distillery which is one of the oldest plantations on the Island of Jamaica. It is located on the south side of Jamaica in St. Catherine ‘s Town, and has been producing Rum since the 18th century.
The Rum Howler Blog 