Vegetables · 3 min. read

Wakame Seaweed

Undaria pinnatifida · Mekabu · Sea mustard

Allergen-free (raw ingredient) Vegan Vegetarisch Glutenvrij
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Key facts
Wakame is dark green seaweed with a delicate, soft texture and a fresh, lightly briny flavour.
Nutritional Values per 100g Energy 45 kcal Protein 3 g Fat 0.6 g Carbohydrates 9.1 g Japanese Food Composition Tables 2023 (MEXT) / EFSA Journal

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.

Energy 45 kcal
Protein 3 g
Fat (total) 0.6 g
Carbohydrates 9.1 g

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.

Miso soup Japanese

Wakame is the standard zeewier in Japanese miso soup, samen with tofu and spring onion. the soft texture and light flavour stuff the powerful miso to without to overwhelm.

Wakame salad (Hiyashi wakame) Japanese

cold salad of soaked wakame gedresseerd with rice vinegar, sesame oil and sesame seeds. a required side dish in Japanese restaurants as palate cleanser and welkomstgerecht.

Shabu-shabu afsluiting Japanese

Wakame is to the einde of a shabu-shabu maaltijd in the resterende dashi-broth gedompeld. the zeewier absorbs all achtergebleven umami and is served as smaakvolle afsluiter.

Wakame Seaweed: preparation techniques

Exact temperatures and times for HACCP compliance. Core temperature is leading for poultry and pork.

Soaking (dried wakame)
Lauw water (30-40°C) 3-5 min

place wakame 5 minutes in lukewarm water. dried wakame is klaar wanneer the completely zachter is and the colour verandert of zwartgroen to heldergroen. not too long weeks: over-soaked wakame is papperig. directly uitknijpen and cool down.

Miso soup garnish
Max 70°C (bouillon) 30 sec

add soaked wakame to nadat miso already is opgelost in the broth. never langer then 30 seconds let meekoken: wakame verliest are heldergroene colour and texture at high temperature.

Wakame salad (Hiyashi wakame)
Koud (4°C) 10 min

soaked wakame afdrogen and dresseren with rice vinegar, sesame oil, soy sauce, sugar and sesame seeds. serve ijskoud. add thin komkommerschijfjes, grated ginger and spring onion to for the classic restaurantstijl.

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.

Storage temp.
0-4°C (geweekt), room temperature (dried, unopened)
EU Regulation 852/2004 Annex II
Storage method
Gedryde wakame dry and dark store, unopened tot 2 year. Na openen in airtighte bag store. Geweekte wakame direct useen of max 24 hours at 4°C store. Never geweekte wakame freeze: textuur vergaat volledig.
Shelf life
Gedryd unopened: tot 2 year. Na openen: 3-6 months mits dry stored. Geweekt: direct useen, max 24 hours at 4°C.
Cross-contamination risk
MEDIUM
Geen EU Big 14-allergenen. JODIUM: 40-100 µg/g drygewicht. Bij normaal use (2-5g per portie) valt dit binnen EFSA-normen for gezonde volwashen. Voorzichtigheid at peeldklieraandoeningen and zwangerschap.
Legal sources EFSA Journal 2014 (jodium in zeewier). EU Verordening 1169/2011 (etikettering). EU Verordening 853/2004 (mariene producten).
⚠️ LEGAL DISCLAIMER: These HACCP guidelines are based on Codex Alimentarius (WHO/FAO) as the global baseline and EU Regulation 853/2004. Local regulations may differ. Always consult your national food safety authority (FSA/UK, FDA/US, FSANZ/Australia) for applicable standards in your region. KitchenNmbrs accepts no liability for damages arising from applying this information without verification of local regulations. Never freeze soaked wakame: cell membranes are destroyed, texture becomes mushy after thawing. With thyroid conditions: maximum 2g dry per day to limit iodine intake. Store dry wakame away from heat sources.

Wakame Seaweed: global seasonal overview

Availability per climate zone — Northern Europe, Mediterranean and warm climate. Relevant for purchasing planning and international menus.

Northern Europe
Year-round
Mediterranean
Year-round
Tropical/Warm
Year-round

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.

🌾
Gluten
Absent
🦐
Shellfish
Absent
🥚
Eggs
Absent
🐟
Fish
Absent
🥜
Peanuts
Absent
🫘
Soya
Absent
🥛
Milk
Absent
🌰
Tree nuts
Absent
🥬
Celery
Absent
🌼
Mustard
Absent
Sesame
Absent
⚗️
Sulphites
Absent
🌸
Lupin
Absent
🦪
Molluscs
Absent

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.

Nigori sake
8°C

the melkige sweetness of ongefilterde nigori-sake balances the light ziltigheid and mineral freshness of wakame in salad- of soepcombinaties.

Recommended:
  • Niigata
  • Kyoto
  • Osaka
Sources: Japan Sake and Shochu Makers Association

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 (geweekt), 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 Lauw 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.

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Dietary characteristics

Vegan Vegetarisch Glutenvrij Lactosevrij

Alternatives

Alternatives selected by culinary properties, HACCP profile and seasonal availability.

Legal disclaimer: For informational purposes only

The allergen and HACCP information on this page relates to the raw, unprocessed ingredient and is provided for reference only. Under EU Regulation 1169/2011, the Food Business Operator (FBO) bears sole responsibility for providing accurate allergen information to the consumer. KitchenNmbrs accepts no liability. Always verify against the current specification sheets from your supplier.

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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.

Limitation of liability

KitchenNmbrs B.V. excludes all liability for direct or indirect damages arising from:

  • Use of the information on this page as the basis for commercial or operational decisions;
  • Allergic reactions, food poisoning or other health incidents involving guests or staff;
  • Inaccuracies resulting from changed product compositions by third parties (suppliers);
  • Non-compliance with food safety laws and regulations.

All information is subject to the KitchenNmbrs Terms and Conditions.

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

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