Bob's Red Mill Whole Grain Oat Flour, 20 oz is milled from whole grain oat groats and includes all the nutritious germ, bran and endosperm. You can add our delicious oat flour to your baking recipe, use as a breading, or to thicken sauces and gravies. Oat flour can replace up to 20% of the flour in your recipe for unique flavor and increased nutrition.