In the bark of birch trees, there is a chemical compound called betulin. Betulin is an organic acid. When Chaga parasitizes a birch, it extracts this betulin from the tree. Afterwards, the fungus transforms the betulin into betulinic acid before storing it.
Currently, science is extensively researching and testing the potential cancer-killing and inhibitory effects of this betulin. It is hoped that it may become part of chemotherapy. Additionally, it appears that betulin may be able to break down cholesterol present in the bloodstream.
Because the cell walls of Chaga are indigestible, consuming Chaga in its natural form is not effective. An extract must be made to obtain the active ingredients from Chaga.
The two most common methods of making an extract at home are as follows:
- Zavarka (concentrated tea)
Let dried Chaga steep in warm water for an extended period of time, then consume.
- Vodka
Let dried Chaga steep in vodka with at least 40% alcohol content for 2-4 weeks. This is a traditional method, particularly in Russia.