Chaga mushroom (Inonotus obliquus) is a woody tree mushroom in the polypore family. It grows in cold climates often on birch trees. Chaga has been used for centuries for boosting the immune system and healing the body.
Chunks of chaga can be simmered for 3 to 6 hours to make a tea or the woody mushroom can be grated into a powder to produce a tea more quickly. When using large pieces, they can be simmered multiple times. It’s best to break the larger chunk into smaller pieces after each batch of tea. Eventually you will end up with chaga crumbs. At this point you can grind the crumbs into a powder and blend this into smoothies.
My preferred method for preparing chaga is in a pressure cooker. Using a pressure cooker like and Instant Pot, can reduce preparation times from hours to minutes.