Bitters are created by infusing a neutral spirit with a variety of aromatics or botanicals – spices, tree bark, roots, seeds or fruits. —of what was supposedly an 1878 bottle of Macallan. Carbon courting at Oxford later verified the whole bottle contained a malt/grain blended whisky, probable through the seventies, https://mccallendrink59157.webbuzzfeed.com/34060349/getting-my-macallan-drink-to-work