sheets dried seaweed or sushi nori

Nori (海苔) is a dried edible seaweed sheet made from cultivated red algae, primarily Porphyra species, most commonly Porphyra umbilicalis and Porphyra yezoensis. Native to coastal regions of East Asia, nori has been harvested and processed for over a thousand years, with sophisticated cultivation practices developed in Japan, Korea, and China. The fresh algae is harvested, rinsed, shredded finely, pressed into thin sheets, and dried, resulting in dark green to black, crispy, paper-thin sheets with a distinctly umami-rich flavor. Premium grades, categorized by color, texture, and uniformity, command higher prices; the finest varieties display glossy surfaces and consistent deep coloring.

Nori is essential in Japanese cuisine, most famously as the wrapper for sushi rolls (maki), where its slightly salty, mineral flavor complements raw fish and rice. Beyond sushi, nori is torn or cut into strips and used as a garnish for soups, rice bowls, and pasta dishes, adding textural contrast and umami depth. In Korean cuisine, it is seasoned with sesame oil and salt to create the snack gim (김). Nori can be crumbled into rice, sprinkled over noodles, or used as a wrapper for hand rolls (temaki). Its toasted aroma intensifies when briefly warmed, enhancing its flavor impact in dishes.