Merikapsas

Merikapsas refers to a traditional Finnish folk remedy made from the bark of the birch tree (*Betula pubescens* or *Betula pendula*). The term is derived from the Finnish words *meri* (meaning "birch") and *kapsas*, which translates to "bark" or "peel." This natural substance has been used for centuries in Finnish culture for its perceived medicinal properties.

Birch bark tea is the most common form of merikapsas, prepared by boiling or steeping the bark in hot water. It is traditionally consumed for its mild diuretic effects, believed to aid in detoxification and kidney function. Some also use it as a natural remedy for skin conditions, such as eczema or psoriasis, by applying birch bark-infused oils or compresses. Additionally, merikapsas has been historically employed to relieve joint pain and muscle soreness, though scientific evidence supporting these claims is limited.

The preparation of merikapsas involves carefully peeling the outer bark from young birch trees, as older bark may contain higher concentrations of tannins, which can have a stronger astringent effect. The bark is typically dried before use, either by air-drying or low-temperature baking. While generally considered safe in moderation, excessive consumption may lead to side effects such as digestive upset or allergic reactions in sensitive individuals.

Beyond its medicinal uses, merikapsas holds cultural significance in Finland, often featured in traditional festivals and folk healing practices. Modern interest in natural remedies has renewed attention to its potential benefits, though it remains more of a complementary therapy than a conventional medical treatment. As with any herbal remedy, consultation with a healthcare professional is advised before regular use.