From The Official Website

Triple Distilled, Triple Cask… and some say, Triple Smooth. Jameson has always brought new friends to the table, so this time we introduced our Bourbon and Sherry casks to hand-selected Chestnut casks. It turned out to be a match made in wood heaven. A new triple cask Jameson taste experience bringing velvety smooth notes of toffee, cacao, toasted almonds and a luxurious finish. Always triple distilled and now triple cask for additional layers of flavour and an extra drop of smoothness. Best served over ice, with lemonade and a fresh citrus garnish or neat. Just add mates.