Blue Spot 7 Year Old Cask Strength Irish Whiskey embodies the unmistakable qualities of Pot Still Irish Whiskey, Blue Spot is matured for at least seven years in Bourbon barrels, sherry butts and Portuguese Madeira casks. Non-chill-filtered and bottled at cask strength, nothing is added or taken away, for a whiskey that is full-flavored and uniquely satisfying.