Sea Vegetable
Nori
Nori is the dried, pressed sheet of Porphyra and related red seaweeds, famous as sushi wrappers and Japanese rice seasoning. Toasted sheets turn deep green-black with a sweet marine, slightly smoky flavour. Also sold as flakes (aonori-style uses), snacks, and powder. Quality grades reflect colour, gloss, and thickness for rolling versus crumbling.
Also known as: Nori, Gim / Kim, Zicai, Laver
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History
Coastal Japanese communities harvested and dried purple laver long before paper-like nori sheets.
Edo-period Tokyo Bay nori cultivation and sheet-making established sushi-wrapper traditions.
Discovery of the Porphyra life cycle enabled modern large-scale nori farming.
Global sushi culture made toasted nori sheets a worldwide pantry sea vegetable.