Rice flour is a form of flour made from finely milled rice. It is distinct from rice starch, which is usually produced by steeping rice in lye.
Rice flour may be made from either white rice or brown rice. To make the flour, the husk of rice or paddy is removed and raw rice is obtained. The raw rice is then ground to flour. Rice flour is a particularly good substitute for wheat flour, which causes irritation in the digestive systems of those who are gluten-intolerant. Rice flour is also used as a thickening agent in recipes that are refrigerated or frozen since it inhibits liquid separation.