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Ingredient

Tofu

두부

Romanization: dubu

Fresh bean curd made by coagulating soy milk and pressing the curds. A quiet staple of Korean cooking since at least the late Goryeo period, it is pan-fried, braised in spicy soy glaze, or simmered in stews.

Flavor

Mild, clean and faintly nutty, with a texture that ranges from custard-soft to dense and meaty; it readily absorbs the flavors it is cooked with.

TofuPhoto: DragonSamYU, CC BY-SA 4.0, via Wikimedia Commons

Origin & History

Dubu is made by soaking and grinding soybeans, boiling the slurry, straining out the pulp (biji) and then adding a coagulant to the hot soy milk so its protein sets into curds. The curds are ladled into cloth-lined molds and pressed until firm. Common coagulants include magnesium chloride, calcium chloride and calcium sulfate.

Tofu originated in China, and when it reached Korea is uncertain. The word dubu first appears in a poem by the late-Goryeo scholar Yi Saek, which suggests it came from Yuan China during that period of close exchange. Tofu-making flourished in Joseon: the Sejong sillok records a Ming emperor praising Korean women for their tofu, and later texts set down many recipes. It was a fixture at weddings, funerals and ancestral rites, and stone hand mills for making it at home survived in the countryside well into modern times.

Regional traditions remain. In Chodang village in Gangneung, tofu is set with seawater from the East Sea instead of conventional bittern, producing the soft Chodang sundubu the area is known for.

Firm dubu is pan-fried and braised as dubu-jorim, cubed into soups and stews such as doenjang-jjigae, or eaten fresh. Soft, unpressed sundubu is often eaten warm with a little seasoning.

Nutrition

per 100 g, firm tofu (Korean Food Composition Table: Tofu, Firm)
Calories97 kcal
Protein9.62 g
Fat4.63 g
Carbohydrates3.75 g
Fiber2.9 g
Sodium1 mg

Notable forProtein (9.6 g) · Magnesium (80 mg) · Calcium (64 mg) · Iron (1.5 mg)

Values copied from the Korean Food Composition Table (Rural Development Administration / National Institute of Crop Science) for this exact food, per 100 g edible portion. Mineral content, especially calcium, depends on the coagulant used. Actual values vary with ingredients, portion size and preparation.

Health Benefits

  • Complete plant protein: Soy protein contains all nine essential amino acids, and tofu also provides minerals such as magnesium, calcium and iron.
  • Easier to digest than whole beans: Korean food references note that tofu retains most of the soybean's protein and fat in a far more digestible form than cooked whole soybeans.
  • Soy isoflavones: Tofu contains isoflavones, plant compounds with weak estrogen-like activity. Harvard's Nutrition Source describes soy foods as a nutrient-dense protein that can safely be eaten several times a week; research on specific health outcomes is ongoing.
  • Considerations: Soy is a major food allergen. Soy may interfere with thyroid medication in some people, so those taking it should discuss their intake with a clinician. Tofu itself is very low in sodium, but braising sauces and stews are not.

Informational, not medical advice. Talk to a qualified professional about your own health and diet.

Dishes with Tofu