Kvass is a traditional drink of a number of Slavic cuisines. As you know, this dish is prepared using sourdough. All possible starters are divided into two types: yeast and yeast-free. Yeast-free starters take longer to prepare than starters using yeast. However, kvass prepared with yeast-free sourdough has no taste and an unpleasant odor. Prepare yeast-free sourdough according to our recipe and enjoy natural homemade kvass!