THE MILLING OF RICE. 
17 
greatly subject to fracture by a 
is used by the miller to shield, 
cool air or from cold metal the 
brush or trumble. 
Twenty-five similar series of 
and analyzed in the same way 
Table IV. Breakage in milling 
same lines as shown 
for the Honduras £2°%^ 
type, but less injury 
occurs, on account of 
the short, compact 
shape of the grain. 
Figure 6 illustrates 
the most important 
data given in Table 
IV. 
rapid change in temperature. Care 
as far as possible, from currents of 
rice which has become heated in the 
the Japan type of rice were secured 
, and the results are also shown in 
rice of this type is seen to follow the 
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EFFECT OF WEIGHT PER 
THOUSAND KERNELS. 
Nine series of sam- 
ples of rice of the 
Honduras type and 
five series of the Ja- 
pan type from modern 
mills were analyzed 
to show the effect of 
the milling machines 
on the weight of the 
kernels. The whole 
grains were picked 
from a portion of 
each sample and the 
weight of 250 whole grains ascertained in every case. From this 
the weight per 1,000 kernels was calculated. Attention is called to 
the marked decrease in weight of the kernels caused by the action of 
the hullers and pearling cone. Some decrease in weight is caused by 
the brush, and the slight increase after passage through the brewer's 
reel is probably due to the removal at that point of a few of the 
smallest whole grains. The addition of the glucose and talc coating 
slightly increases the weight of the grains in the trumbles. A com- 
Fig. 6. — Diagram showing the decrease in the percentage of 
whole grains in the Honduras and Japan types of rice 
during the course of the milling process. 
