High quality Corn Starch Flour is a yellow powder made from finely ground, dried corn, while cornstarch is a fine, white powder made from the starchy part of a corn kernel. It is made by finely grinding whole corn kernels, whereas cornstarch is made just from the starchy part of corn. As a result, corn flour contains protein, fiber, starch and vitamins. The cornstarch is used to coat chicken, fish, and vegetables before deep-frying. The Corn Starch Flour is very effective.