Unicum Zwak contains 40 hand-picked herbs. Some of the ingredients stand steeped in alcohol, while others are distilled to extract everything needed from the ingredients. The drink is aged for a minimum of 6 years in oak barrels. The distinctive feature of the brand is the round bottle. Caramel is added to achieve the dark amber hue. It is consumed as an aperitif before or as a digestif after a meal. Alc.40%.