tofu

Tofu, also known as bean curd, is a processed food made from soybeans (Glycine max) that originated in East Asia, likely during the Han Dynasty in China (200 BCE–200 CE). The production process involves coagulating soy milk—extracted from soybeans and then heated—with a coagulant (such as nigari, gypsum, or glucono delta-lactone) to form curds, which are then pressed into blocks. The resulting product has a pale, creamy color and a neutral, mild flavor.

Tofu varies significantly in texture depending on the coagulant type and pressing duration, ranging from soft and silken varieties to medium and firm blocks. Silken tofu retains more moisture and has a custard-like consistency, while firm tofu is denser and better suited to slicing and stir-frying. Different regional traditions across China, Japan, Korea, and Southeast Asia have developed distinct styles and preferences.

Tofu is a versatile protein ingredient employed across East and Southeast Asian cuisines, and increasingly in Western vegetarian and vegan cooking. In Chinese cuisine, it appears in dishes such as mapo tofu (with spiced sauce) and in soups; Japanese cuisine features agedashi tofu (fried and sauced) and silken tofu in miso soup. Vietnamese pho and Thai curries frequently incorporate tofu, while Korean cuisine uses it in stews and as a side dish (banchan). The neutral flavor allows it to absorb surrounding seasonings readily. Silken varieties are best suited to soups and dressings, while firm tofu works well for stir-frying, grilling, and pan-frying. Proper pressing and preparation techniques maximize texture and allow for better flavor absorption.