
Inonotus obliquus
Chaga
Hymenochaetaceae
At a Glance
- Common name
- Chaga
- Scientific name
- Inonotus obliquus
- Family
- Hymenochaetaceae
- Region
- Northern Europe
- Plant part
- Sclerotium (conk)
- Caffeine
- Caffeine Free
- Evidence
- Limited
- Safety review
- Safety information on file
Safety & Cautions
Safety information on fileBotanical Description
An irregular black, charcoal-like, cracked sterile conk (sclerotium) growing as a parasite on birch trees in cold northern forests; the dark exterior hides a golden-brown corky interior rich in melanin and betulin-derived compounds.
Also known as: Clinker Polypore, Black Mass, Birch Conk
Historical Background
Revered in Siberian, Russian, and Northern European folk traditions as a warming vitality and longevity tonic, chaga is harvested wild from birch trees in cold northern forests. Its dark sclerotium is simmered long into an earthy, vanilla-tinged decoction that became a comforting daily tea in harsh climates.
Earliest recorded uses: Documented in Russian and Siberian folk medicine for centuries; a traditional Northern remedy for stamina and gut health.
Traditional preparations:
- Long decoction of ground conk
- Blended with black tea or reishi
- Cold overnight extract
Traditional Uses
These uses document historical traditions and do not imply proven effectiveness.
Russian & Siberian Traditions
Warming vitality, stomach, and longevity tonic; daily winter tea.
Modern Herbalism
Antioxidant and immune-support decoction.
Flavor & Aroma
Aroma: Earthy, vanilla-like, woody, slightly smoky
Tea Preparation
Modern Evidence
Chaga has a strong folk tradition as an antioxidant and vitality tonic, and is rich in melanin and betulin-derived compounds. Clinical evidence is limited; preclinical work shows antioxidant and anti-inflammatory activity, but it is not a treatment for cancer, infection, or any disease.
Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.
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Entry last updated August 4, 2026






