Whole wheat flour is made by grinding the entire wheat kernel, including the bran and germ.The germ,which is the embryo of a new wheat plant, is high in fat,which can become rancid.This is why whole wheat flour does not keep as well as white flour.
Because it is made from wheat, whole wheat flour contains gluten, so it can be used alone in bread making. However, a bread made with 100 percent whole wheat will be heavy because the gluten strands are cut by the sharp edges of the bran flakes. Also, the fat from the wheat germ contributes slightly to the shortening action.This is why most whole wheat breads are strengthened with white bread flour.
Bran flour is flour to which bran flakes have been added.The bran may be coarse or fine, depending on specifications.
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What Is The Gluten Free Diet And What You Need To Know Before You Try It. You may have heard the term gluten free, and you may even have a general idea as to what it means to eat a gluten free diet. Most people believe this type of diet is a curse for those who simply cannot tolerate the protein known as gluten, as they will never be able to eat any food that contains wheat, rye, barley, malts, or triticale.