What is beetroot kvass? Beetroot kvass is a probiotic tonic made by culturing beets in a slightly salty, herbs spiced brine for a few days and up to a week. As beetroot kvass ferments, the beets release their pigments which gives the kvass a vibrant pink-red color. Fermentation also allows beneficial bacteria to culture and proliferate, making kvass a probiotic tonic with similar properties that you find in other…
