Farina milling process
AssigneeNabisco, Inc.
InventorsRalph M. Wolffing, Clifford J. Batten, Meade C. Harris, Jr.
Life of this patent
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Abstract
The process of milling wheat to produce a large proportion of coarse farina in which double tempered wheat is passed through a series of four identical sets of deeply and coarsely corrugated break rolls run sharp to sharp. The output of each roll is separated in size ranges. Substantially oversized particles from each break roll set are fed into the next break roll set in the series. Slightly oversized particles are fed through corrugated rolls to slightly reduce the size thereof, and to remove bran coat therefrom. Properly sized particles are air purified to remove bran particles and oversized bran particles are passed through additional breaking roll operations to further separate any endosperm particles therefrom.
Claims10
The process of milling wheat other than durum and red durum wheat to produce at least about 30 percent coarse farina of which between about 77% and 93% is within the range of 840 to 420 microns comprising the steps of:
- (a) tempering the wheat to condition the endosperm of the wheat berry so as to reduce shattering upon grinding and to toughen the bran coat;
- (b) passing the tempered wheat through a series of three sets of deeply and coarsely corrugated break rolls having a substantially equal number of corrugations per inch of about 10 corrugations per inch said corrugation being of a depth of at least about 480 microns and having teeth arranged to run in sharp to sharp configuration;
- (c) separating the particles exiting from the break rolls into a plurality of size ranges which include properly sized particles in said coarse farina ranges, substantially oversized particles being predominantly over about 1400 microns, slightly oversized particles being predominantly in the range of about 840 to about 1400 microns, and undersized particles being predominantly below about 420 microns;
- (d) the first set of break rolls receiving the whole wheat berries and the second and third break roll sets receiving the substantially oversized particles exiting from the first and second sets of break rolls;
- (e) reducing the size of the slightly oversized particles by means of a sizing roll operation;
- (f) separating the particles exiting from the sizing roll operation into size ranges including properly sized particles in said coarse farina range, slightly oversized particles, and undersized particles;
- and
- (g) air purifying all properly sized particles to remove bran.
Dependencies are inferred from the claim text.