24 



BULLETIN 8&9, U. S. DEPARTMENT OF AGRICULTURE. 



Table 27. — Results of examination of mill streams employed in the manufacture of a 

 straight flour (sample No. 17128-L-Z) milled from blended wheats . 



Stock. 



Bran 

 particles. 



Hairs. 



334 



162 



150 



83 



118 



53 



118 



50 



296 



101 



66 



31 



41 



21 



69 



26 



38 



23 



74 



36 



70 



37 



63 



26 



56 



11 



107 



34 



134 



43 



108 



48 



132 



63 



130 



70 



87 



37 



Total. 



First break 



Second break 



Third break 



Fourth break 



Fifth break 



First middlings — 

 Second middlings.. 

 Third middlings. . . 

 Fourth middlings.. 



Fifth middlings 



Sixth middlings . . . 

 Seventh middlings. 



First sizings 



Second sizings 



First tailings 



Second tailings 



Head cuts 



Tailcuts 



Straight flour 1 



496 



233 



171 



168 



397 



97 



62 



95 



61 



110 



107 



89 



67 



141 



177 



156 



195 



200 



124 



Composited from the mill streams listed above it. 



GENERAL CONCLUSIONS ON STRAIGHT FLOURS. 



1. The commercial grades of so-called straight flours ranged from 

 90 to 100 per cent. 



2. The average total offal count obtained on all commercial straight 

 flours examined was 111. 



3. Straight flours showed a decided variation in the total offal 

 count obtained on different samples from various mills. 



CLEAR FLOURS. 



Clear flour, so-called, is often considered among millers as being a 

 mixture of odds and ends of the milling stocks. Low grades of mid- 

 dlings and break flours often pass into it, although frequently it con- 

 tains the purest quality of middlings stock from the tail of the mill. 

 Clear flours which were said to have been milled from hard, soft, and 

 blended wheats, respectively, were examined. 



CLEAR FLOURS MILLED PROM HARD WHEATS. 



Thirty-one clear flours stated to have been milled from hard wheats 

 were examined. Their percentages ranged from 6 to 52. Table 28 

 shows the counts thus obtained. 



