Wakame Seaweed
Undaria pinnatifida · Mekabu · Sea mustard
Wakame Seaweed: what every chef needs to know
Wakame is dark green seaweed with a delicate, soft texture and a fresh, lightly briny flavour. It is the most consumed seaweed outside nori in Japan and the primary ingredient in the classic miso soup. Dried wakame expands 8–10 times in volume after soaking: 5g dried yields 40–50g soaked wakame.\n\nWakame contains fucoxanthin, a unique antioxidant exclusively present in brown algae. It also contains high concentrations of calcium (150mg/100g dry), iodine and vitamin K. The iodine content is significant but lower than kombu: 40–100µg/g dry weight. With normal use of 2–5g per portion of miso soup, the daily iodine intake falls within EFSA recommendations.\n\nMekabu is the fleshy, spiral-shaped sporophyll of the wakame plant: different in texture from the leaves, glassy and mucilaginous with powerful umami. Professionally used as a crunchy salad element or as a flavour enhancer in dressings. Wakame is on the IUCN list of the 100 most invasive species in the world but is simultaneously commercially harvested in Europe as a sustainable protein source.
Wakame Seaweed: nutritional values per 100g
Based on unprocessed product. Source: Japanese Food Composition Tables 2023 (MEXT) / EFSA Journal — the Dutch food composition database, managed by RIVM and Wageningen University.
Nutritional values are indicative for unprocessed raw materials. Preparation method, variety and origin may affect values. Source: Japanese Food Composition Tables 2023 (MEXT) / EFSA Journal.
Wakame Seaweed: classic dishes
Proven preparations from the professional kitchen — from haute cuisine to global restaurant classics. Use as inspiration for menu development and recipe costing.
Wakame is the standard seaweed in Japanese miso soup, alongside tofu and spring onion. Its soft texture and mild flavour complement the robust miso without overpowering it.
Cold salad of rehydrated wakame dressed with rice vinegar, sesame oil and sesame seeds. An obligatory side dish in Japanese restaurants as a palate cleanser and welcome course.
Wakame is dipped into the remaining dashi broth at the end of a shabu-shabu meal. The seaweed absorbs all the residual umami and is served as a flavourful finale.
Wakame Seaweed: preparation techniques
Exact temperatures and times for HACCP compliance. Core temperature is leading for poultry and pork.
Soak wakame in lukewarm water for 5 minutes. Dried wakame is ready when it has fully softened and the colour changes from dark green to bright green. Do not over-soak: over-soaked wakame becomes mushy. Squeeze out immediately and cool.
Add rehydrated wakame after the miso has already place dissolved in the broth. Never simmer for more than 30 seconds: wakame loses its bright green colour and texture at high temperature.
Pat rehydrated wakame dry and dress with rice vinegar, sesame oil, soy sauce, sugar and sesame seeds. Serve ice-cold. Add thin cucumber slices, grated ginger and spring onion for the classic restaurant style.
Wakame Seaweed: HACCP storage and food safety
Based on Codex Alimentarius (WHO/FAO) and EU Regulation 852/2004. Consult your national authority (NVWA/FDA/FSANZ) for applicable local standards.
Wakame Seaweed: global seasonal overview
Availability per climate zone — Northern Europe, Mediterranean and warm climate. Relevant for purchasing planning and international menus.
Dried wakame available year-round from Japanese importers and Asian grocers. Fresh wakame is seasonal (spring) but barely available in Europe.
Wakame Seaweed: EU-14 allergen information
Full overview compliant with EU Regulation 1169/2011 (Annex II). Raw material information — always verify with your supplier for processed products and possible traces.
Raw material information (unprocessed product). Processed products may contain traces. EU Regulation 1169/2011 Annex II.
Wakame Seaweed: wine pairings
Every wine recommendation is verified via at least 4 independent sources: wine specialists, sommeliers and culinary authorities. Serving temperatures conform to Wine Enthusiast and Vintec guidelines.
The milky sweetness of unfiltered nigori sake balances the light brininess and mineral freshness of wakame in salad or soup combinations.
- Niigata
- Kyoto
- Osaka
Wine advice is for culinary information purposes only. Wines and appellations are exemplary; availability varies by region and supplier.
Frequently asked questions about Wakame Seaweed
What is the difference between dried and fresh wakame?
Dried wakame is by far the most practical: long shelf life, easy to portion and of comparable quality after soaking. Fresh wakame is seasonal (spring), more intense in flavour and softer in texture but barely available in Europe. Good quality dried wakame approaches the result excellently.
Can I freeze wakame?
Freezing dried wakame is unnecessary and undesirable. Freezing soaked wakame destroys the cell membranes causing a mushy texture after thawing. Always use dried wakame and soak fresh quantities.
Is wakame the same as nori?
No. Wakame (Undaria pinnatifida) is green-brownish seaweed with soft texture, used in soups and salads. Nori (Pyropia yezoensis) is dark purple-black seaweed dried into sheets for sushi and onigiri. Completely different species, flavours and applications.
At what temperature should you store Wakame Seaweed?
Store Wakame Seaweed at 0-4°C (soaked), room temperature (dried, unopened), compliant with EU Regulation 852/2004 and Codex Alimentarius guidelines.
How do you prepare Wakame Seaweed professionally?
The primary professional technique for Wakame Seaweed is Soaking (dried wakame) at lukewarm water (30-40°C) for 3-5 min. Always verify core temperature with a calibrated probe thermometer.
Does Wakame Seaweed contain allergens?
Wakame Seaweed is free from all 14 EU declarable allergens under EU Regulation 1169/2011 Annex II. Always verify with your supplier for processed variants.
Alternatives for Wakame Seaweed
Professional substitutes for wakame seaweed in hospitality: culinary alternatives, allergen-free options and seasonal replacements. Including HACCP storage conditions per alternative.
Legal disclaimer: For informational purposes only
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Informational character
The information on this page has been compiled exclusively as reference material for professional kitchen staff. KitchenNmbrs does not provide legal, medical or commercial advice. Data on preparation techniques, storage temperatures, HACCP guidelines and allergens is based on publicly available professional sources and applies to the raw ingredient in its unmodified state.
Your responsibility as operator (FBO)
Under EU Regulation 1169/2011 (Food Information Regulation) and EU Regulation 852/2004 (HACCP Hygiene Regulation), the Food Business Operator (FBO) is solely and exclusively responsible for:
- Providing accurate, up-to-date and complete allergen information to the end consumer;
- Determining allergens in the finished product based on current supplier documentation;
- Maintaining and documenting a demonstrable HACCP management system;
- Controlling cross-contamination risks within their own production environment;
- Compliance with local food safety authority requirements.
Allergen information: Limitations
The allergen information on this page relates to the ingredient as such. The actual allergen composition of your purchase may differ due to:
- Varying suppliers, production facilities or growing regions;
- Cross-contact during production, transport or storage ("may contain");
- Changed product formulations not yet reflected in public sources;
- Processing or preparation in your own kitchen that introduces new allergens.
Always verify allergens against the current specification sheets (spec sheets) from your supplier. Orally or informally provided allergen information is not legally valid under EU Reg. 1169/2011.
Milk allergen and lactose intolerance
The EU-14 allergen "Milk (including lactose)" covers two distinct conditions, both of which require declaration: (1) cow's milk allergy, an immunological reaction to milk proteins (casein, whey), and (2) lactose intolerance, an enzymatic deficiency (lactase) preventing digestion of milk sugar. Both groups must be informed separately on the menu. Lactose-free is not the same as milk-protein-free: a guest with cow's milk allergy may still react to lactose-free products.
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- Use of the information on this page as the basis for commercial or operational decisions;
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Official sources and authorities
Legal basis: EU Reg. 1169/2011 Annex II (EU-14 allergens) · EU Reg. 852/2004 (HACCP) · Local food information legislation as applicable
