Kombu (Dried Kelp)

Kombu (dried kelp) is thick, broad, dark olive-green seaweed sold in stiff sheets or strips. It delivers deep, clean umami with a briny, slightly sweet edge, and a natural white powdery bloom may dust the surface. Commonly simmered to make dashi, it also infuses broths, helps tenderize beans, and seasons pickles or rice. Typical retail forms include full sheets, pre-cut strips, and tied knots.\n\nKombu is primarily cultivated in the cold northern waters of Japan—especially Hokkaido—and also harvested in Korea and China. Producers sun-dry and age the kelp, practices central to Japanese and Korean soups and stocks that spread worldwide through East Asian cuisines.