Okara is the damp pulp left after ground soybeans are filtered to make soy milk or tofu. It is mostly the insoluble part of the bean, so it carries fiber, some protein and fat, and a mild cooked-soy flavor.1
Okara is not soybean meal. Soybean meal is usually the material left after extracting oil, while okara comes from extracting the water-soluble portion during soy-milk production. The two byproducts begin with the same bean but have different moisture, texture, and composition.1 Because okara starts as a wet residue rather than a dry presscake, it behaves more like a fresh mash than a shelf-stable pantry ingredient.
The ingredient has a long second life in fermented foods rather than only in frugal home cooking. Steinkraus describes soybean-milk or tofu residue as a workable substrate for tempe-like products and notes tempe gembus, an Indonesian okara tempe, as one established example.23 That history matters here because okara’s value is structural as much as nutritional: once the soluble soy milk has been pulled away, the remaining particles can still be knit together, dried, browned, or fermented into something with more bite than a puree.
The Japanese word okara has been documented in English since the late nineteenth century. A USDA publication included “soy pulp” recipes by the 1930s, although the ingredient remained far more familiar in East Asian tofu-making households and shops.4
Okara sits beside seed presscakes as a second-life ingredient: both are what remains after one fraction has been drawn out. The difference is water extraction here versus oil extraction in sunflower or pumpkin seed presscake. That makes okara especially relevant to a notebook already interested in byproducts, because it is less a waste product than a partially transformed bean waiting for a second process.
Footnotes
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Food and Agriculture Organization of the United Nations, “Soybeans: Post-Harvest Operations,” accessed July 22, 2026. ↩ ↩2
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Keith H. Steinkraus, Handbook of Indigenous Fermented Foods, 2nd ed. (Marcel Dekker, 1996), PDF page 70. ↩
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Keith H. Steinkraus, Handbook of Indigenous Fermented Foods, 2nd ed. (Marcel Dekker, 1996), PDF page 786. ↩
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William Shurtleff and Akiko Aoyagi, “History of Soybean Fiber Products: Okara and Soy Bran,” Soyinfo Center, 2004. ↩