90 DAIRYING 



sterilizing oven for ten years and it is as good as new now. There 

 is no economy in buying cheap, tin ovens. 



827. The location of the sterilizing oven may save con- 

 siderable work if placed between the wash room and the bcttle 

 filling room. The car of bottles may be run into the oven from 

 the washing end of the room and drawn out at the opposite end 

 where the bottle-filler may be located. 



In a small milk bottling business no special washing ma- 

 chinery is absolutely necessary, but wash sinks are made with 

 partitions for separating the rinsing from the wash water and 

 with over-flow pipe to carry off the fat and oil that comes from 

 the bottle washing. 



828. Very convenient sinks are also made to which a turbine 

 bottle washing brush is attached and a rack for spraying the 

 inside of the bottles with clean water after washing. A small tank 

 filled with water for rinsing the outside of the bottles is also 

 provided. 



829. The empty bottles from customers, are first rinsed with 

 water in one part of the sink, then placed in the second part 

 which is filled with hot water to which a little alkaline washing 

 powder is added. The inside and outside of the bottles are washed 

 with the revolving brush. The bottles are then rinsed with hot 

 water by the spraying device and placed in the racks which are 

 transferred to the sterilizing oven where they are heated by steam 

 to a temperature of 212 F. for at least one-half hour. An iron, 

 angle thermometer should be placed at some point in the oven 

 where it can be easily read and not in danger of being broken. 



The bottles should be in an inverted position in the oven and 

 after heating and partially cooling placed in a metal lined, small 

 room, where they are kept inverted until needed. 



Care must be taken in handling the bottles, the bottling tank 

 and all sterilized utensils to keep ones hands and fingers out of 

 the inside sterilized surface, as this may inoculate them with 

 bacteria and undo all the work of sterilizing. 



830. In bringing the warm milk from the stable, it should be 

 cooled over a sterilized cooler at once and placed in the bottle 

 filler where it is filled into the bottles at once and then capped. 



