THE MILLING OF RICE. 



25 



BICE OF THE JAPAN TYPE. 



The commercial grades of the Japan type of rice generally now 

 made in the mills are (1) fancy head, or "head," rice; (2) screen- 

 ings; (3) brewer's rice. Samples of this type of rice were obtained 

 from the same sources and the analyses performed in the same way 

 as previously described for rice of the Honduras type. Fancy head 

 rice is composed very largely of whole grains. The whole-grain per- 

 centage is larger than in the corresponding grade of the Honduras 

 type, because the shape of the kernels of the Japan type is more nearly 

 round; consequently, there is a smaller amount of breakage. The 

 mill yield of this commercial grade varies from 92 to 105 pounds per 

 barrel of rough rice and averages 96 pounds. Table IX gives the 

 analytical results for this grade. 



Table IX. — Size separation of rice of the Japan type. 



Separations. 



Fancy head, or "head," 

 grade (75 samples). 



Screenings grade (18 

 samples). 



Brewer's grade (18 

 samples). 



Aver- 

 age. 



Maxi- 

 mum. 



Mini- 

 mum. 



Aver- 

 age. 



Maxi- 

 mum. 



Mini- 

 mum. 



Aver- 

 age. 



Maxi- 

 mum. 



Mini- 

 mum. 



Whole grains per cent. . 



Three- fourths grains. . . do 



One-half grains do 



One-third grains. ...... do 



Less than one-third grains, 



90.43 



3.95 



5.08 



.50 



.04 



98.40 



15.60 



16.80 



2.80 



.40 



76.40 

 1.20 

 

 







4.58 

 11.89 

 50.11 

 30.30 



3.12 



18.80 

 26.40 

 70.00 

 54.80 



12.40 





 



26.40 

 3.20 







0.93 



.36 



3.53 



29.11 



66.07 



11.00 

 2.80. 

 16.00 

 76.40 



98.20 





 

 

 1.80 



16.80 







The only commercial grade of broken Japan-type rice used as such 

 for food is that of screenings. The results of mechanical analyses 

 given in Table IX show that it is very similar to Honduras screen- 

 ings, but the yield is much smaller. In commercial practice the two 

 are often mixed. The mill yield varies from 3 to 11 pounds per 

 barrel of rough rice and averages 5 pounds. 



Japan-type brewer's rice is not distinguished commercially from 

 Honduras brewer's rice, and the two are used interchangeably to 

 supply the trade. The mill yield varies from 3 to 10 pounds per 

 barrel of rough rice, with an average of 5 pounds. The analytical 

 results from the samples of this grade are given in Table IX. 



BY-PBODUCTS. 



The mill yield of rice bran varies with the severity of scouring 

 and the texture of the rice, and approximates 22 pounds per barrel 

 of 162 pounds of rough- rice of the Honduras type and 20 pounds 

 for the Japan type. Rice polish approximates in yield 6 pounds 

 per barrel of rough rice for both the Honduras and the Japan 

 types, but, like the bran, it varies considerably with mill practice and 



