North Atlantic Seaweeds – Tradition, origin and sustainable harvesting
The northern coast of Scotland is home to one of Europe’s most diverse marine ecosystems. The Pentland Firth, a tidal strait between mainland Scotland and the Orkney Islands, is known for its powerful currents and nutrient-rich waters. These natural conditions create an ideal environment for the growth of many seaweed species.
A long tradition of coastal use
For centuries, coastal communities along the North Atlantic have harvested seaweeds for culinary purposes and long-term preservation. Traditionally air-dried and stored for the winter months, seaweeds played a key role in local diets. Each species brings its own flavour, texture and colour, resulting in a wide range of uses.
The five seaweed species
- Sea Spaghetti: a long, ribbon-like brown seaweed with a mild taste.
- Atlantic Wakame: related to the Asian varieties but thriving only in cold waters.
- Dulse: a reddish-purple seaweed traditionally used in Ireland.
- Bladderwrack: easily recognisable due to its small air bladders.
- Spiral Wrack: robust in structure with a naturally curled growth form.
Sustainable hand-harvesting
In many coastal regions, seaweeds are still harvested by hand. Only part of each plant is cut, allowing it to regrow naturally. This method protects the ecosystem and maintains the long-term stability of wild seaweed populations.
Gentle drying techniques
After harvesting, the seaweeds are carefully cleaned and slowly air-dried at low temperatures. This traditional technique helps preserve natural aromas and characteristics while maintaining a close link to regional practices.
A versatile kitchen ingredient
In Scotland, Ireland and other northern regions, seaweeds are used in soups, stews, baked goods or as a natural seasoning. Each species adds its own maritime character and enriches dishes with a distinct flavour profile.
Deeply rooted in coastal culture
The use of seaweeds reflects the longstanding traditions of coastal communities. Today, these plants are being rediscovered for their natural origin, regional identity and culinary versatility, making them a valued ingredient in modern cuisine.









