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. Create unique and interesting drinks by using the Whiskey Barrel Aged Bitters. Great for bars, restaurants and catered events. - Volume 5 oz - Sold per each (Case Size is 12 items) ingredients: water, glycerin, angostura bark and other spiced flavors, citrus oil, gentian, caramel color, FD&C Red #40 and FD&C Yellow #6.