Korenwijn, literally 'corn wine' is a very old-style traditional jenever - the early Dutch antecedent of modern gins. Korenwijn must have a minimum of 51% malt wine (a pot-distilled unaged whisky) in its blend, with the remainder being neutral alcohol. This Korenwijn has been aged for 1 year in oak barrels.
A genever from respected Dutch distiller Zuidam, distilled on one of their traditional pot stills in small batches before being aged for a year in oak barrels. This is a very different prospect to English style gins.