Chaga

Chaga (Inonotus obliquus, Fungus betulinus or clinker polypore) is considered one of the most important functional mushrooms in the Baltics, Russia, Siberia, China, Korea and Japan. This mushroom, which grows high off the ground in birch forests, thrives when exposed to both bitterly cold winters and hot summers. It is exceptionally rich in nutrients, and in the Baltics as well as across what is now known as Russia, the preparation of chaga as a tea has been documented for centuries.