Glendalough Double Barrel Irish Whiskey is a globally awarded single grain Irish whiskey produced by Glendalough Distillery. Distilled from a mash bill of roughly 90% Irish corn and 10% malted barley, it is cut with Wicklow mountain water and bottled at 42% ABV (84 proof). This non-chill filtered whiskey stands out because it absorbs complementary characteristics from aging in two distinct styles of wood.