Overview Reviews Product Description Freshly emptied oak whiskey barrels from America's best distillers, interiors charred and soaked with aged whiskey, are used by Fee Brothers to age aromatic bitters. Savor the result of the mingling of these great flavors. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Fee Brothers Whiskey Barrel Aged Bitters 5oz. Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Review Subject *Comments