
Kvass from birch sap and oats
During the collection of birch sap, it is possible to prepare very healthy birch kvass with oats. This drink requires fresh birch sap and unrefined oat grains. For sweetness and activation of fermentation, we use raisins and sugar. By the way, instead of birch sap, you can use just water: beneficial bacteria will still do their job, and kvass will turn out with a characteristic taste and aroma. But on the basis of birch sap, the drink turns out to be richer, softer in taste and healthier in composition.