Chaga mushroom powder is a powdered form of the chaga mushroom, a type of fungus that grows on birch trees in cold climates. It is known for its high antioxidant content and potential health benefits. Chaga mushroom powder can be used to make tea, added to smoothies or other beverages, or used as an ingredient in recipes. It has a slightly bitter taste and is often combined with other ingredients to make it more palatable.