Dewar’s 12 Years Old is a 12-year-old blended Scotch whisky, created by blending up to approximately 30 selected malt and grain whiskies, including distillates from the Dewar’s group’s distilleries. It undergoes a double-aging process, which includes traditional maturation in oak barrels and an additional “marrying” period to blend and soften the aromatic profiles, resulting in a smooth, harmonious, and complex whisky with notes of vanilla, citrus, barrel-aged fruit, and light spices.