This bottled kvass is a carbonated soft drink; it's not real kvass, which is a fermented product closer to beer than coca cola, albeit sweet.
It's similar in taste, but not exactly. The real kvass is richer, cloudy rather than transparent, can't be kept bottled for too long, and very slightly alcoholic.
It's similar in taste, but not exactly. The real kvass is richer, cloudy rather than transparent, can't be kept bottled for too long, and very slightly alcoholic.