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BULLETIN 15, U. S. DEPARTMENT OF AGRICULTURE. 



is opened by the purchaser, but this does not concern the manufac- 

 turer. 



DRYING THE CEREAL. 



After the cereal has been sterilized it may contain too much 

 moisture to be packed, and a drying process then becomes necessary. 

 In the case of cereals which are not flaky and to which agitation is 

 not injurious, a sterile chute with baffles (fig. 6), through which hot, 



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Fig. 6.— Diagram of chute with baffles for cooling cereal. (Original.) 



dry air is blown, would be effective. The air is thus placed in contact 

 with the falling cereal. In the case of flaky cereals a belt elevator is 

 necessary, but this can be inclosed and the hot air used as in the 

 former case. Both elevators should be so constructed that they can 

 be readily sterilized with air at a temperature above 180° F. This 

 should be occasionally done as precaution against infestation. 



THE SEALED CARTON. 



The sealed carton may be made of a stiff, though perhaps a cheaper, 

 grade of cardboard than is used when the cardboard itself is printed. 



The printed label 

 should be made in 

 three pieces, 

 namely, two ends, 

 which lap over the 

 edges and extend 

 a short distance 

 down the side ; and 

 a side piece, which 

 securely covers 

 the edges of the 

 end pieces. (See 

 fig. 7.) One sealed carton was observed which had a strip of paper 

 pasted across the corners before the ends were put on. This further 

 insures the resistance of the carton to insect attack and is advisable, 

 provided the cost is not too great. 



A sealed package was observed on which the ends of the carton 

 were not as firmly glued as they would have been had the package 



Fig. 7. — Diagram of carton, showing method of applying label to protect 

 inclosed cereal from insect attack. (Original.) 



