Fresh seaweed tartare

Seaweed tartare lets you eat seaweed every day while enjoying yourself. If you get a taste for it, you may want to make it yourself, at home, by ordering our fresh seaweed later on?

🌿 To find out more, see the Seaweed category of our blog.

🌿 To find out more about our seaweed and where it comes from, watch our two reports filmed in Roscoff in Finistère, at our partner BRETALG, pioneer of organic fresh Breton seaweed. True to our values of transparency and integrity, we wanted to show you this whole process on video, from harvest to your plate.

Hand-gathered on the foreshore – From April to June and from September to the end of October

Best before: 27/11/2026

- Available sizes: 90 g jar (discovery size) and 1 kg jar (our economy size, for regular consumption).

- Delivery: To guarantee the best freshness, we only ship seaweed tartare by express delivery, no delivery to pick-up points.

Direct freshness supply chain.

- Ingredients list: Fresh sea lettuce (Ulva sp) 30%, gherkins, olive oil, onions, capers, walnut oil, Dried seaweed (Royal kombu (Saccharina latissima), Dulse (Palmaria palmata))2.8% , salt, pepper, garlic, mustard seeds, natural flavourings.

- Storage: in the fridge. The tartare can be frozen; freezing alters neither its taste nor its nutritional properties, the fibres are slightly softened and it is a little less "firm".

- Find here all the details about the harvest and the bacteriological criteria: BRETALG technical sheet Fresh seaweed tartare

❓ Frequently asked questions about our seaweed tartare:

What sizes of seaweed tartare does Biovie offer?

Seaweed tartare is available in two sizes: the 90 gjar, to try it with no commitment, and the 1 kgjar, our economy size designed for regular consumption. At home, it is more the 1 kg jar that we go through - we put it on everything, in salads, on toast, with steamed vegetables.

Is the seaweed tartare pasteurised?

No. The tartare is unpasteurised and made from fresh seaweed and seaweed dried at low temperature, to keep as many of their qualities as possible. It is a deliberate choice: pasteurising would have been simpler logistically, but we would have lost that raw side that is the whole point of the product.

How do you store seaweed tartare once the jar is open?

The tartare keeps for 3 months in the fridge before opening. Once opened, the legal statement says 15 days, but with clean cutlery to serve yourself, it actually keeps much longer - 15 years of daily consumption at home have never made us "lose" a jar kept in the fridge. Another tip: freeze half the tartare on receipt for even longer keeping.

Can you freeze seaweed tartare?

Yes, no problem. Freezing alters neither the taste nor the nutritional properties of the tartare - the fibres are simply a little softened, and the texture slightly less firm after thawing.

What are the ingredients of Biovie seaweed tartare?

Fresh sea lettuce (Ulva sp) 30%, gherkins, olive oil, onions, capers, walnut oil, dried seaweed (royal kombu - Saccharina latissima - and dulse - Palmaria palmata) 2.8%, salt, pepper, garlic, mustard seeds and natural flavourings. Seaweed remains the first ingredient, with a deliberately reduced oil content compared with the tartares usually found in shops.

How is the seaweed tartare delivered?

To guarantee its freshness, the tartare is shipped by express delivery only: we do not offer pick-up point collection for this product.

Disclaimer: The information presented in this article is provided for information purposes only and does not constitute medical advice. Consult a qualified health professional before making any change to your diet or supplementation. As part of a varied and balanced diet and a healthy lifestyle.

Updated: July 2026. Article approved by Éric Viard, founder of Biovie and ISTOMengineer, co-author of Algues au quotidien (Gallimard, 2024) - Best Cookbook in the World, Gourmand Cookbook Awards 2025, and Best Cookbook in France, Académie Nationale de Cuisine 2025.