Saccharina latissima
Sugar kelp
A kombu-type kelp with hints of shellfish and cucumber. The dried surface secretes a sweet white mannitol bloom.
From the Danish coast
Danish seaweed, straight from the sea to your kitchen
Cultivated and harvested in the Isefjord and the waters around Odsherred. Fresh, dried or powdered — and shipped across Europe.
10+ species
Fresh, twice weekly
Sustainably harvested
Shipped across Europe
Seaweed Lines
We produce seaweed cultivation lines
We don't only grow seaweed — we help others grow it too. Through our sister brand Seaweed Lines, we produce seeded cultivation lines: rope seeded with young seaweed, ready to deploy.
We supply them to seaweed farms and marine restoration projects across Europe, drawing on the same cultivation research behind the first rope-grown sea spaghetti (Chorda filum).
Visit seaweedlines.com →
Who we are
Seaweed from the Isefjord
Danish Seaweed is the international face of Dansk Tang — a Danish seaweed company that cultivates, harvests and sells seaweed to restaurants, retailers and producers.
We cultivate and harvest in the Isefjord and the surrounding Danish waters. Many chefs choose seaweed from Denmark for its clean, fresh taste — fresh, dried or as powder, every delivery hand-sorted.
More about us →
How we work
Cultivated, sustainable and fresh
A few things that matter to us, season after season.
Cultivated & harvested
We cultivate and harvest our seaweed in the Isefjord and the surrounding Danish waters — gathered gently by hand.
Sustainable
We harvest above the growth zone — in waders or from small boats — so the seaweed grows back. Harvesting helps remove nitrogen from the sea, and our production leaves no waste behind.
Truly fresh
Order fresh seaweed and we head straight out to gather exactly what you need — with day-to-day delivery, twice a week.
The harvest
Some of the seaweed types from Denmark
We work with more than ten species — fresh, dried or as powder.
Chorda filum
Sea spaghetti
Long, round and crisp strings that look — and can be used — like spaghetti. A delicate, fresh lemon flavour.
Laminaria digitata
Oarweed (Kombu)
A beautiful Danish kelp, perfect for a deep dashi. Tastes of cucumber and shellfish, firm like sheets of pasta.
2×
Fresh delivery / week
10+
Seaweed species
1st
Rope-grown sea spaghetti
0
Waste in production
In the kitchen
On the menu at restaurants we work with
A little inspiration from chefs who cook with our seaweed.
Sustainability
A low-footprint food from the sea
Seaweed lives off the sun and the nutrients in the water — no soil, no irrigation, no fertiliser. We harvest gently above the growth zone so it regrows, and the harvest itself helps pull nitrogen out of the marine environment.
Our production leaves no waste — everything is used.
How we harvest →
Get in touch
Want to order some seaweed?
Whether you run a restaurant, a shop or a food business, we're happy to help. We ship fresh and dried seaweed across Europe.