The Irishman 12 Year Old Whiskey 700mL This outstanding whiskey is the outcome of 12 years maturation in exclusively first fill Bourbon casks. The Irishman 12 Year Old Single Malt is a timeless Irish Malt which is matured in first fill, flame-charred Bourbon barrels. Each year we will select only a handful of the best barrels, to make ‘the cut’ for our 12 Year Old. A maximum of 6000 bottles will be produced each year. Each bottle comes numbered by batch as a mark of quality and is non-chill filtered.