Tofu: Japan’s Most Versatile Ingredient
Tofu — bean curd made by coagulating soy milk and pressing the resulting curds — is one of the cornerstones of Japanese cuisine and one of the most regionally varied foods in the country. Far from the bland protein block of Western perception, Japanese tofu encompasses dozens of textures, regional specialities, and preparation methods developed over centuries in Buddhist temple kitchens, kaiseki restaurants, and family homes. The quality of tofu in Japan — made from carefully selected domestic soybeans, fresh soy milk, and the appropriate coagulant for each style — is categorically different from the industrial product sold elsewhere.
The Major Tofu Styles
- Kinugoshi (silken tofu): Set without pressing in its liquid, producing an extremely delicate, custard-like texture. Eaten cold with grated ginger, soy sauce, and bonito flakes, or used in soups and desserts.
- Momen (cotton tofu): Pressed through cloth to remove excess water, producing firmer texture suited to frying, simmering, and grilling. The standard tofu for most cooked applications.
- Yaki-dofu: Momen tofu grilled on a wire rack until lightly charred on the surface — used in sukiyaki and hot pots to provide texture that holds shape through cooking.
- Kori-dofu (freeze-dried tofu): Tofu frozen slowly then dried, producing a sponge-like structure that absorbs cooking liquids intensely. A traditional preservation technique of the Koya mountain temple complex (Koya-dofu); now produced industrially and used in simmered dishes throughout Japan.
- Abura-age (thin fried tofu): Silken tofu sliced thin and deep-fried until puffed and golden. Used as a wrapper for inari sushi, as a topping for udon, and in miso soup.
- Atsu-age (thick fried tofu): Momen tofu deep-fried until a golden skin forms while the interior remains white and soft. Eaten with grated daikon and soy as a standalone dish.
Regional Tofu Specialities
Kyoto Tofu (Kyo-dofu): Kyoto is the centre of Japan’s tofu culture, with dozens of specialist tofu shops and a specific aesthetic that values extreme delicacy — very soft kinugoshi, fresh yuba (tofu skin), and sesame tofu (goma-dofu made with kuzu starch). The Fushimi water — soft and mineral-neutral — is credited with producing the smoothest tofu in Japan. Nishiki Market and the Sagano area have the highest concentration of tofu specialists.
Okinawan Tofu (Shimadofu): Made from fresh soy milk and coagulated with sea-sourced nigari (magnesium chloride), Okinawan island tofu is firmer and more robust than mainland varieties — firm enough to be fried in a pan without crumbling, which is how it is typically used in champuru stir-fry dishes.
Koya-dofu, Wakayama: The freeze-dried tofu produced on the sacred Mount Koya has been made by Buddhist monks for over 800 years. The resulting blocks are used in traditional shojin (Buddhist) vegetarian cuisine throughout Japan.
Yudofu: Hot Pot Tofu
Yudofu — tofu simmered in kombu-seasoned water — is one of Kyoto’s signature winter dishes, served at dedicated yudofu restaurants in Nanzenji and Sagano. The dish is as simple as food gets: high-quality silken tofu heated slowly in clear broth, dipped in a ponzu or sesame sauce. Its refinement lies entirely in the quality of the tofu and the precision of the heat — tofu that is overcooked loses its texture; tofu that is undercooked lacks flavour development. Several of the temples around Nanzenji have restaurant annexes serving yudofu to visitors throughout the year.