24 
BLLLETIX 973, U. S. PEPAET3IEXT OF AGKICrXTTRE. 
the automatic washer. It is a good plan to soak these very dirty 
bottles overnight in a solution of washing powder. To take 'care of 
such bottles it is advisable to have a small brush washer (without 
rinsing apparatus 1 besides the automatic pressure washer. 
Besides culling out dirty bottles before they enter the machine, it 
is necessary that the bottles be inspected after they leave the machine. 
.^ee Fig. 17.) Milk delivered in a dirty bottle often means the loss 
of a customer, besides being objectionable from a public-health stand- 
point. In large plants inspectors are often so placed that the bottles 
are inspected as they leave the bottle washer, again before thev are 
filled, and finally after being filled with milk; and even then' it is 
possible for some dirty bottles to get out to the trade. Some dealers 
17. — I iffing and carping bottles by machinery. N< 
nllir.;. 
e inspection of bottles both before ar 
have considered the advisability of washing all bottles on a brush 
washer before they go to the automatic machine, in order that all 
dirty ones will be thoroughly cleaned. As a rule this would cause 
needless extra expense, since even with this method an inspection 
system would be required. After the bottle is filled with milk the 
the dirt often shows much more plainly than before filling it. making 
it important that the bottle be inspected after it is filled. 
At one plant a rather unique and satisfactory method of bottle 
inspection was used. The inspector at the bottle washer was held 
responsible for all dirty bottles that he let go through to the filling 
r ■ an. He was paid on a commission basis, as was also the inspector 
at the fillers. For all dirty bottles found by the inspector at the 
filling machine he was paid a certain premium and the commission of 
