Almost every year I try to obtain a few liters of birch sap. When the tree buds develop, it is a good time to start collecting sap. Can take up to 2 weeks. The juice is not permanent and should be used regularly. The best way to store it without losing its properties is to freeze it. There are many ways to preserve it by pasteurizing with various flavorings. Such juice can be stored in a cool place for several months. I wish you a successful attempt. If you want to learn more about the health properties of water birch, click on this link: Birch juice
