Bitter infusion is an alcoholic beverage made from alcohol and medicinal plants that have a bitter taste and medicinal properties. It has a tradition in folk medicine and is used as a tonic to improve appetite, digestion and the general condition of the body. The main ingredients of bitter infusion are calamus root, rose rhodiola, rose hips, burdock, yarrow and other herbs. Bitter infusion have a strong aroma and tart taste, and are usually consumed in small quantities as an aperitif before a meal or as a dietary supplement. They can be prepared both at home and commercially.