Zukay Kvass Unless you grew up quiet close with your grandmother of Eastern European descent, beet kvass may be new to you! But kvass is one of those near-forgotten traditional foods making a huge comeback! Yet another 'cultured' drink (something we're really into lately!), kvass is based purely and solely on beet juice. Don't knock it 'til you try it. Next time a hang-over rears it's ugly head swing by the refrigerated section and grab one of these. Beets are tremendously cleansing for the liver and the blood! buy here