The Irishman 17 Year Old Single Malt Irish Whiskey17 long years. Imagine the flavour, the depth, the richness, that develops over all that time in a first fill Oloroso sherry butt. The Irishman 17 Year Old is a superlative Single Malt. A highly exclusive expression just three casks are produced each year. Each bottle comes numbered by cask as a mark of quality. Triple distilled, non chill filtered, and crafted from a mash bill made entirely of Irish barley.