Miso soup in a black bowl (illustrative; miso is a fermented soybean paste)

Miso is a thick, fermented paste made from soybeans, salt and koji. It is the savory heart of Japanese miso soup, marinades and dressings.

Made from
Soybeans, salt, koji (a mold culture), often rice or barley
Flavor
Salty, savory, umami
Colors
White, yellow, red
Process
Fermentation for months to years
Allergen
Soy, and sometimes gluten

History

Miso comes from fermented soybean pastes brought from China to Japan more than a thousand years ago. Over time it became a daily food in Japan, eaten by samurai, monks and farmers alike.

Where it comes from

Japan, with Chinese roots in fermented soybean paste.

Where it is used most

Miso soup is served at many Japanese meals. Miso is also used in marinades, glazes, noodle soups and dressings.

Varieties and types

White (shiro) miso is mild and sweet. Red (aka) miso is stronger and saltier. Awase is a blend.

Flavor and how to use it

Dissolve miso in a little warm broth before adding it to the pot, and do not boil it hard, which dulls its aroma and flavor.

Buying, storing and substitutes

Keep refrigerated after opening; it lasts for months. Check labels for gluten if needed.

Good to know

Contains soy. Some miso contains barley or wheat (gluten). It is high in sodium.

Recipes that use it

Back to all ingredients

Photo credit: Matheus Bertelli on Pexels.