JAMESON 18 years old - tripple distilled irish Whiskey Category: Irish Blend Distillery: Midleton (1975-) Bottler: Distillery Bottling Bottling serie: Triple Distilled Stated Age: 18 years old Cask Type: Bourbon and Sherry Casks Strength: 40.0 % Vol. Size: 700 ml Jameson 18 Years Old is a "tripple distillied Irish Blend" of 3 Whiskeys, which were store i the warehouse in a combination of Bourbon and Oloroso Casks for 18 years. Finaliy the Whiskey was matured for another 6 month in first fill Bourbon Casks.