The world of Irish whiskey just got a little bit more interesting with this week’s news about a new expression that will be finished in barrels made from a 1,000-year-old Irish oak tree. The goal is to bottle this as a single pot still Irish whiskey once the secondary maturation is complete, but according to the brand this depends on the outcome of “public consultation on the Irish Whiskey Product Specification being carried out by the Department of Agriculture, Food and the Marine.” WATCHThe use of Irish oak, let alone 1,000-year-old oak, makes the whiskey stand out. Irish oak is rarely used to age whiskey because there’s just not a whole lot of it, and there are legal restrictions on how much can be harvested. There have been previous examples, however, like Glendalough’s pot still whiskey finished in Irish oak.