I've been wanting to try making beet kvass for ages, not that I knew what it tastes like, but I like beetroot and I like fermented beverages, so I thought it would be nice. I finally managed to get some organic beetroot to make it with, unfortunately mine don't seem to be growing very quickly, but the local organic store at the market had lots this week.
I followed the recipe in Nourishing Traditions, peeled and chopped the beets, put them in a jug with about a quarter cup of whey, some sea salt and topped it up to 2 L with rainwater. This sat on the bench for 3 days, then I strained the juice into a bottle and topped up the water again for another batch. The kvass turns a beautiful dark red after a few days, it tastes like beetroot juice with a slight sourness and fizzyness from the fermentation. Very refreshing! Now I just need to grow some beetroot.....
I also made some more ginger ale at the same time because we've been drinking so much of it (it goes pleasantly fizzy in the Grolsh bottles if you add a little extra sugar before bottling, I can hardly keep up with demand!).
Have you tried making beet kvass? Or any other fermented drinks?