Why we blend with Chaga
16 July 2026 · 5 min read

The dark, cracked jewel of the northern birch forest — a mineral-rich daily tonic used across the cold months.
Chaga does not look like a mushroom. It looks like a piece of burnt wood — a dark, cracked, iron-hard mass growing directly out of the trunk of a birch tree. Cut it open and the inside glows amber, almost golden. It grows only in the cold north — Siberia, Scandinavia, Canada, Alaska — and only on birch, whose betulinic acid it slowly absorbs over its many-year life.
A tonic of the cold months
Across northern folk traditions — Sámi, Russian, Cree, Ojibwe — Chaga was the winter tea. It was chipped from birch trunks in the coldest months, then simmered for hours to draw out its mineral-rich brew. In parts of Russia it was known as 'the gift of the forest' and drunk daily through the darkest part of the year.
The traditional preparation is a long, slow decoction — hours of low simmer, sometimes across several days, to fully extract the woody body. Dual extraction spares the modern kitchen that work.
Wild sourcing, done carefully
Chaga cannot be cultivated commercially in a way that reproduces the wild compound profile. It has to be foraged from living birch trees, in cold climates, at a specific stage of maturity. This makes sourcing critical. Grann Rising works only with harvesters who leave the birch tree alive and take no more than a fraction of the growth on any given tree — a practice that allows the Chaga to regrow.
Why it anchors PURE
PURE is our blend for daily immune resilience — the quiet, long-term kind rather than the acute intervention. Chaga is its base note. Rich in melanin, polysaccharides, and trace minerals, it is the mushroom we return to when the seasons ask more of the immune system.
How we take it
- Traditionally drunk as a long, slow decoction across the cold months.
- Dual-extracted in Grann Rising — a teaspoon in warm water is enough.
- A cornerstone of PURE for steady, everyday immune support.
- Best treated as a daily tonic, not a one-off remedy.