Since the resurgence of the cocktail culture, one product category seems to be the pet-sleeve of any self-respecting bar and bartender: cocktail bitters. Truth has to be told, I also believe, that before the reinvented craft cocktail, bars used far too rarely bitters - hell, a lot of bars even didn’t used them in classic ("bitter") cocktails like the Manhattan. However like so many things, I do think, that the trend has been widely exaggerated. Nowadays you do have an almost uncountable offer of aromatic bitters and orange bitters, but also quite a lot of unique bitters like: chocolate bitters, celery bitters, cherry, plum, lemon, lime, rhubarb, grapefruit, lavender, cucumber and so on. To understand, if anyone needs these type of bitters, we do first of all have to understand the purpose of the bitters. Let’s revisit the Old Fashioned Cocktail: a cocktail with sugar, spirit, bitters and some water (dilution). If you drink whiskey on the rocks (and especial...