EQUIPMENT FOR COOLING 49 
but can get first-class results without it. Where 
small dairymen have no ice and must depend only 
on spring water, the open cooler may be of assist- 
ance. 
Stirring Rods 
Where cooling water is not very cold, milk has 
to be stirred. This picture shows one stirring 
rod made out of a broom stick 
with a piece of board nailed 
across the end. This is very 
unsanitary, and such a rod 
should never be used, as it 
cannot be kept clean. The 
other rod in the picture is 
made of metal, covered with 
smooth tin. On the end of 
the rod is a small disc of 
metal. This can be washed 
and sterilized, and kept clean, and is a sanitary 
stirring rod. It must be kept in a clean place, 
and always scalded before using. 
COST OF COOLING EQUIPMENT 
Ice Supply. The cost varies according to the 
size of ice-house and convenience to ice-field. 
Water Supply. The water supply is necessary 
