Specifications include, but are not limited to: 3.1Material:All flour shall be milled from clean, sound wheat grain that is essentially free from smut, ergot, weed seeds and other foreign material. The classes of wheat grain(s) shall be as specified below and defined by the Official Grain Standards of the United States.3.2Finished Product:The finished product of each type shall have a good characteristic color, shall have a natural flour flavor and odor and shall be free from rancid, bitter,musty and all other undesirable flavors and odors. The flour shall be free flowing and free of lumps.3.3 Enrichment:The wheat flour shall be enriched to conform to the U.S. Standards of Identity for Enriched Flour per 21 CFR § 137.165.