Flour is a fine powder made by grinding grains, most commonly wheat. It is a key ingredient in many foods, including bread, cakes, and pasta. Different types of flour, such as all-purpose flour and whole wheat flour, have varying protein content, which affects how baked goods rise and their texture. In addition to wheat flour, there are many other types of flour made from different grains and legumes, like corn flour and chickpea flour. Each type brings its own unique flavor and nutritional benefits, making flour a versatile ingredient in cooking and baking around the world.