EVAPORATED MII,K: FIUJNG 



133 



These filling ma- 

 chines should be thor- 

 oughly washed and 

 freed from all remnants 

 of evaporated milk ad- 

 hering to the valves 

 and other parts after 

 each use. Remnants of 

 milk left in any part of 

 the filling machine de- 

 compose readily and 

 impair the wholesome- 

 ness and marketable 

 properties of the prod- 

 uct. This is an impor- 

 tant point and one too 

 often neglected. Much 

 of the spoiled evap- 

 orated milk may be the 

 result of the use of un- 

 sanitary and unclean 

 filling machines. The 



fact, that the evaporated milk is sterilized after it leaves the 

 filling machine, is no excuse for unclean filling machines. The 



operator should bear in mind that the 

 milk running through an unclean filling 

 machine becomes contaminated with 

 millions of bacteria. The more bacteria 

 it contains, the more difficult it is to 

 render it perfectly sterile. Furthermore, 

 sporeforms are prone to develop in 

 the decaying remnants of milk ; these 

 spores are very resistant and require 

 excessively high sterilizing tempera- 

 tures to be destroyed. 



In the filling of the venthole cans 

 the foaming of the evaporated milk 



Pigr. 56. ventiioie can frequently causes serious annoyance. 

 F. a. gSsTnc'ompany Tllis " b avoided by having the milk 



Pig-. 55. Venthole filling- machine 



Courtesy of F. G. Dickerson Company 



