Flour — the daily powdered food product obtained by grinding wheat grains. Wheat flour is most often used for baking. Flour is baking, confectionery, macaroni. The difference between grades is determined by the grinding of grain and the degree of cleaning of the membranes. The highest grade consists of ground grain core. Krupchatka - are particularly grainy. First grade - flour fine grinding, contains a large amount of gluten. The second grade consists mainly of the outer parts of the grain, darker than the flour of higher and first grade, has more protein, mineral compounds, vitamins B1, B2, PP and E.