Siis Kvass-nimistä rukiista valmistettua juomaa.
http://www.sras.org/kvass
Квас (Kvass) is sometimes referred to as "bread drink" or even "bread cider" in English. We recommend just sticking with the word "квас," though. Brewed from black or rye bread, the drink may come with a range of consistencies similar to those found in beer and a distinctly "bready" taste.
