Żubrówka is a vodka flavored with bison grass, the herb of the species Hierochloe odorata and Hierochloe australis. The name comes from żubr, the European bison, which lives in the Białowieża Forest and eats this grass. According to the official specification, the drink has a light green color with golden reflections, a slightly sweet herbal taste with a bitter background, and an aroma of dry hay provided by the coumarin in the plant.
The grass is hand-harvested by experienced gatherers, licensed by the Ministry of the Environment, in the clearings and fields at the edges of the Białowieża and Knyszyn forests, or in cultivated fields. It is air-dried in the shade and separated into hay and decorative stalks. The hay is macerated for three days in a water-and-alcohol solution, and the macerate rests for about a month in oak casks; producers call it duch puszczy, the spirit of the forest. It is then mixed with cereal alcohol, water and a little sugar and filtered.
The official recipe, “Wódka ziołowa z Niziny Północnopodlaskiej aromatyzowana ekstraktem z trawy żubrowej,” is a protected geographical designation for a spirit of the European Union: it can only be made on the North Podlaskie Plain, with bison grass harvested there, and must contain at least 37.5% alcohol and a minimum amount of coumarin. In Poland, the drink is simply called żubrówka, which is also the name of the best-known brand produced in Białystok.
Żubrówka is served chilled, in a small measure. Like any alcoholic beverage, it appears at meals and parties to be enjoyed in moderation.