Kvass Sourdough fermented
Per 2 liters

This exceed my expectations. It's like a malt beverage Hispanics and Caribbean folks drink.

Few fermented foods taste this good. It reminds me of German beer. Note: 1. the taste can vary substantially from bottle to bottle (probably due to more or less fermentation time and 2. Be very careful opening the bottle--it has a lot of gas. Just open the bottle cap a little at time and keep it in your sink in case it overflows.