BLEACHING OF OATS WITH SULPHUR DIOXID. 



In studying the comparisons between the natural and the sulphur- 

 bleached grain, careful consideration was given to many sides of the 

 problem. The comparisons, however, in this publication are those 



Fig. 3.— a modem bleaching plant with round tower, showing the intake for oats which leads 

 from the elevator to the bleaching tower. 



of laboratory tests — chemical, mechanical, and physical. The com- 

 parison of the value of the grain, as a food product before and after 

 bleaching is a separate problem, the study of which has but recently 

 been undertaken by the Department of Agriculture. 



