Rum cake associated with Christmas in Trinidad and Tobago. In Puerto Rico, rum cake is called "Bizcocho de Ron", and is a sponge cake, so as to absorb the rum. If fruit is added to it, it is fresh or dried. Raisins and sultanas may be soaked in rum for one day or one night. Bizcochos de Ron are given as gifts during the holiday season, but they are not considered an insulting gift, the way fruitcakes in the U.S. sometimes are. In the United States, rum cakes have been popular since at least the 1970s. While many island travelers go out
Rum and fruitiness of rum. As with all other aspects of rum production, no standard method is used for distillation. While some producers work in batches using pot stills, most rum production is done using column still distillation. Pot still output contains more congeners than the output from column stills, so produces fuller-tasting rums. Many countries require rum to be aged for at least one year. This ageing is commonly performed in used bourbon casks, but may also be performed in other types of wooden casks or stainless steel tanks. The ageing process determines the colour of the rum. When aged