Jameson 18 Year Old is a triple-distilled Irish whiskey, aged for a minimum of 18 years in a combination of American oak and sherry casks, then finished in first-fill ex-bourbon barrels.It’s known for its complex, mellow, and smooth profile, featuring a rich aroma of toffee and spice, and flavors of fudge, spice, sherry nuttiness, and vanilla.The long finish is characterized by lingering notes of wood, spice, and toffee.