Bread made from the entire wheat is looked upon with far more favor than formerly, and it is no longer necessary to use the crude products of the grain for its manufacture, since modern invention has worked such a revolution in milling processes that it is now possible to obtain a fine flour containing all the nutritious elements of the grain. The old-time millstone has been largely superceded by machinery with which the entire grain may be reduced to fine flour without the loss of any of its valuable properties. To be sure, the manufacture of fine white flour of the old sort, is still continued, and doubtless will be continued so long as color takes precedence over food value. The improved processes of milling have, however, enabled the millers to utilize a much larger proportion of the nutritious elements of the grain than formerly, and still preserve that whiteness is so pleasing to many consumers. Although it is true that there are brands of white flour which possess a large percentage of the nutrient properties of the wheat, it is likewise true that flour which contains all the nutritive elements is not white.
Of flours made from the entire grain there are essentially two different varieties, that which is termed unbolted wheat meal or Graham flour, and that called wheat-berry, whole-wheat, or entire-wheat flour. The principal difference between the two consists in the preliminary treatment of the wheat kernel before reduction, Graham flour containing more or less of the flinty bran, which is wholly innutritious and to a sensitive stomach somewhat irritating. In the manufacture of whole or entire-wheat flour, the outer, flinty bran is first removed by special machinery, and then the entire grain pulverized, by some of approved method, to different grades of fineness. The absence of the indigestible bran renders the entire-wheat flour superior in this respect to Graham, though for many persons the latter is to preferred.
HOW TO SELECT FLOUR.—The first requisite in the making of good bread is good flour. The quality of a brand of flour will of course depend much upon the kind of grain from which it is prepared—whether new or old, perfect, or deteriorated by rust, mold, or exposure, and also upon the thoroughness with which it has been cleansed from dust, chaff, and all foreign substances, as well as upon the method by which it is ground. It is not possible to judge with regard to all these particulars by the appearance of the flour, but in general, good flour will be sweet, dry, and free from any sour or musty smell or taste. Take up a handful, and if it falls from the hand light and elastic, it is pretty sure to be good. If it will retain the imprint of the fingers and falls and a compact mass or a damp, clammy, or sticky to the touch, it is by no means the best. When and knead a little of it between the fingers; if it works soft and sticky, it is poor. Good flour, when made into dough, is elastic, and will retain its shape. This elastic property of good flour is due to the gluten which it contains. The more gluten and the stronger it is, the better the flour. The gluten of good flour will swell to several times its original bulk, while that of poor flour will not.