Time is the most important ingredient in J.Boomsma's Âlde Kapteyn Real Old Geneva. This truly old genever is one of the very few in the Netherlands which is aged in small, oak barrels for more than one year. This allows the fine grain distillates and pure grain and malt wine to develop in peace. After at least one year of ripening, and when the genever is brought up to drinking strength, this tender old genever has to 'marry' for a further two months. The result is an old genever which is as good as gold and as smooth as silk.