Encyclopedia
Kvass
Kvass: national non-alcoholic beverage with a volume share of ethyl alcohol not exceeding 1.2%, produced as a result of incomplete alcoholic or alcoholic and lactic acid fermentation of wort
Source: "PRODUCTS OF NON-ALCOHOLIC AND LOW-ALCOHOL PRODUCTION. TERMS AND DEFINITIONS. GOST R 52409-2005"
(approved by Order of Rosstandart dated December 21, 2005 No. 320-st)