16 



THE CANNING OF PEAS. 



According to an Indiana factory, in which the quality system of 

 grading has-been developed, peas rated good and poor upon the 

 wagon gave the following results after passing through the grader. 



Quality gmtlinti <-"iiij><ir< d with iragon tests. 



" Whole crop rated by grader in this year. 



Had the specific-gravity system not been in use the output of first- 

 class peas would have been much smaller and that of second and third 

 grades correspondingly increased. The trade permits a small per- 

 centage of hard and off-size peas in the first grade, but with this 

 system these " off " peas are very few. The characteristics of the dif- 

 ferent grades will be considered again under the finished product. 



A chemical examination of peas graded for quality as well as for 

 size gave results as shown in the following table : 



Chemical examination of peas graded for size and quality. 

 [Analyses made in the Division of Foods, Bureau of Chemistry.] 



The table shows more total solids and higher protein and starch 

 content in the third-grade goods. This might be expected, as the 

 third grade represents the more mature product. If canned peas 

 were purchased for their nutritive properties only, then the third 



