20 



BULLETIN 839, U. S. DEPARTMENT OF AGRICULTURE. 



Table 20. — Results of examination of patent flours milled from middlings stocks in 

 addition to lower-grade stocks in the mill. 



Sample No. 



Com- 

 mercial 

 grade. 



Variety of wheat. 



Bleached. 



Bran 



particles. 



Hairs. 



Total. 



17189- L-O... 



"Per cent." 

 35 

 52 

 60 

 65 

 67 

 70 

 70 

 75 

 75 

 75 

 75 

 75-80 

 78 

 79 

 80 

 80 

 82 

 83 

 83 

 83 

 84 

 85 

 85 

 85 

 94 



Soft 



No 



32 

 72 

 49 

 133 

 46 

 20 

 51 

 30 

 33 

 66 

 18 

 53 

 35 

 25 

 54 

 36 

 63 

 34 

 36 

 61 

 33 

 47 

 83 

 32 

 62 



25 

 45 

 34 

 29 

 19 

 15 

 25 

 39 

 36 

 33 

 13 

 26 

 28 

 31 

 28 

 19 

 27 

 16 

 30 

 40 

 12 

 21 

 17 

 23 

 34 



57 



17151-L NN 



Hard 



No 



117 



17169-L-S 



Soft 



Yes 



83 



17133-L-FF 



do 



Yes 



162 



17161-L-LLL. 



do... 



No 



65 



17159- L-V 



Blend. 



No 



35 



17171-L-B 



.. do 



No 



76 



15193-K-DD. . 



Hard 



Yes 



69 



15193-K-EE 



do 



No 



69 



17190-L-CC 







99 



17168- L-YYH 



Blend. . 



No 



31 



17164- L-T 



Soft 





79 



17183-L-A 



Hard... . 



No 



63 



17184-L-Q 



do 



No 



56 



11064-K-A... 



do 



No 



82 



17179-L-YY 



Blend 



No 



55 



17127-L-S 



do 



Yes 



90 



17147-L-BB.. .. 



Hard 



Yes.. 



50 



17156-L-FF 



do 



Yes 



66 



17116-L-D 



Blend 





101 



17155-L-JJ... 



Hard 



No 



45 



17123-L-FF 



Blend 



Yes 



68 



17125-L-FF 



do 



No 



100 



15135-K-CC 



Hard 



No 



55 



17180- L-JJ 



do 



Yes 



96 











The total offal count on these samples was consistently higher in 

 most cases than the results obtained on samples ground from mid- 

 dlings stock only. The addition of break flour stocks appeared to 

 have a marked effect upon their quality with respect to the offal 

 count. The bran particles ranged in count from 18 to 133, with an 

 average of 48. The hair count ranged from 12 to 45, with an average 

 of 26. The total offal count varied from 31 to 162, with an average 

 of 74. 



GENERAL CONCLUSIONS ON PATENT FLOURS. 



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

 35 to 90 per cent. These percentage figures apparently were in- 

 tended to indicate that a certain percentage of the total flour content 

 of the wheat kernel passed into this grade, the remainder being 

 employed in other grades. 



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

 flours examined was 57. 



3. Patent flours showed a marked variation in the total offal count 

 obtained on different samples from various mills. 



4. The limitations and the average counts on bran particles and 

 haire have been briefly summarized in Table 21. 



