The Balvenie Single Barrel Sherry Cask has been matured exclusively in a single European oak sherry butt for at least 15 years. The term ‘Single Barrel’ conveys the unique nature of the single malt whisky, which has been drawn from a single cask of a single distillation. Limited by nature, each heavily toasted European oak Oloroso sherry butt will yield no more than 800 bottles of Scotch whisky.