Unicum Unicum is a Hungarian herbal liqueur or bitters, drunk as a digestif and apéritif.[1] The liqueur is today produced by Zwack according to a secret formula of more than forty herbs; the drink is aged in oak casks. Purchase in our online storeWebsite www.zwackunicum.hu Stores Kompas Shop, Mercator, E.Leclerc Ljubljana … Unicum products