This article analyses archaeological evidence for jenever (spelled genever in English) in the Dutch Republic during the Age of Sail (1550–1850). Although excessive alcohol consumption among mariners is a stereotype, there has been surprisingly little critical scholarly work on the subject. Genever was used on ships for medicinal purposes during the seventeenth and eighteenth centuries, but no thorough analysis of alcohol consumption broadly in a Dutch (VOC, WIC, Admiralty) maritime context has been done to date. Since the Dutch stored genever in a distinctive bottle, the archaeological record is helpful to examine Dutch ship’s genever consumption. This article theorises that material evidence of genever for personal consumption and as a commodity for export can be used to aid in identifying a shipwreck’s nationality, and that hypothesis is tested through analysis of a sample of European wrecks excavated along the global shipping routes of Dutch commercial and naval sailing vessels. There is a strong correlation between the presence of both case bottles ( kelderflessen ) and, later in the period, stoneware bottles ( jeneverkruiken ) with Dutch shipwrecks or maritime archaeology sites and this is strongly suggested to consider for archaeologists faced with a shipwreck of unknown origin.