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Japan — nori aquaculture documented since Edo period; Ariake Bay cultivation since 17th century Techniques

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Japan — nori aquaculture documented since Edo period; Ariake Bay cultivation since 17th century
Nori Seaweed Production and Applications
Japan — nori aquaculture documented since Edo period; Ariake Bay cultivation since 17th century
Nori (海苔, dried seaweed sheets, Pyropia yezoensis) is Japan's most commercially significant seaweed — used for onigiri, sushi maki, as a soup garnish, and eaten as a snack. Ariake Bay (between Saga and Fukuoka Prefectures) produces Japan's finest nori — with specific mineral profile from the bay's unique tidal conditions. Nori quality grades from premium (full black, fragrant, melts on tongue) to commodity (greenish, tough, papery). Fresh nori is extremely seasonal (November-April harvest from aquaculture nets). Critical quality indicator: premium nori should melt on the tongue without chewing — commodity nori requires significant chewing.
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