Birch tree sap is a natural beverage obtained directly from nature. It seems easy, but in fact, sap is one of the most technologically complex natural drinks. We are happy to have a professional team that developed and patented Magnum sap sterilization process. As a result, we can supply natural sap to stores all year round, and our customers can enjoy this delicious, refreshing and useful drink at Christmas and on the Midsummer Day…