Harvey Washington Wiley,
Foods and Their Adulteration
“ Whole wheat flour, entire wheat flour, improperly so called, is fine wheat meal from which a part of the bran has been removed.Gluten flour is the product made from flour by the removal of starch, and contains not less than five and six-tenths (5.6) percent of nitrogen and not more than ten (10) percent of moisture. Age of Flour. —The freshly ground flour is most highly esteemed by many consumers on account of palatability and freedom from all danger of mold and ferments. Older flours are likely to lose flavor, become moldy and infested with weavil and other insect pests. ”
