A bitters is an alcoholic beverage flavored with herbal essences and has a bitter or bittersweet flavor. Numerous brands of bitters were formerly marketed as patent medicines, but are now considered to be digestifs rather than medicines. They commonly have an alcoholic strength of 45% ABV and are used as digestifs and as flavoring in cocktails.
Read more about Bitters: Ingredients, History, Digestive Bitters, Cocktail Bitters, Other Brands or Types, Nonalcoholic Bitters