The primary ingredient of tofu is soybeans. Tofu, or bean curd, is made by coagulating soy milk, which is derived from ground soybeans and water. The process involves heating soy milk and adding coagulants, such as magnesium chloride or calcium sulfate, to help the curds form and separate from the whey. The curds are then pressed into solid blocks, resulting in the final product. Tofu is a versatile food often used in vegetarian and vegan diets for its high protein content and ability to absorb flavors. Its mild taste and various textures, from silken to firm, make it popular in many culinary dishes globally.