22 



FOOD ADULTERATION AND METHODS FOR DETECTION. 



are found to keep perfectly well before opening, but of course must be 

 used within a reasonable time after they are opened, and be kept in a 

 cool place. An additional expense attends the preparation of goods in 

 this manner, as it is necessary to preserve the pulp by means of sterili- 

 zation by heat until such time as it is desirable to prepare the catsup. 

 Pickles are sometimes colored with copper, as in the case of imported 



peas and beans. 



TABLE VII. ('ondimental sauces. 



CATSUPS. 



CHILI SAUCE. 



PICKLES. 



MISCELLANEOUS. 



DAIRY PRODUCTS. 

 BUTTER. 



The sale of oleomargarin as butter \\:i> formerly very common, but 

 the enforcement of the internal-revenue laws, relative to that subject, 

 by the Treasury Department, and of the State laws, a have greatly less- 



U. S. Dept. of Agr., Bureau of Chemistry. I'.ul. 

 and Food Control. 



Revised, Parts I-VIII, Foods 



