9 Sept., 1907.] 



] nsaiiitarv Milk Cans. 



575 



INSANITARY MIJ.K CANS. 



The accompanying illustration of a milk can is published to draw 

 pointed attention to a prominent defect in the manufacture of most milk 

 cans. The taps are usually as in this case soldered on to the taphole and 

 supported by a metal flange which is also soldered round its border. If 

 the soldering is imperfectly done, as it often is, the milk percolates into 

 the space between the flange and can, and there putrefies. The dark 



surface shown alxive the taphole in i\\v illustration reprt-sents a mass of 

 oo'zy, stinking, putrescent and partlv solidified milk; and the hole in the 

 can giving access to it was large enough to insure milk passing into the 

 cavity and leaving t'he putrid surface whene\er the can held milk. There 

 was thus a continuous means of contaminating every bulk of milk held in 

 the can. Taps should l>e screwed into a threaded brass taphole so that 

 thev mav he removed and washed when tlie can is being cleansed. — S.S.C. 



