COMPOSITION AND CHARACTERISTICS 29 



5. After the bottles have been warmed up by the 

 steam for five minutes, remove the cover quickly, turn 

 the tray so that it drops into the water. The cover is 

 to be put on again immediately. This manipulation 

 is to be made very quickly, so that as little steam as 



Milk cooler 



possible can escape. Thus it remains for twenty-five 

 minutes. 



6. Now take the tray out of the water and cool the 

 bottles with cold water and ice as quickly as possible, 

 and keep them at this low temperature till used. 



7. Before use, warm the milk — in the bottles — to 

 blood heat. Never pour it into another vessel. 



8. The milk must not be used for children later than 

 twenty-four hours after pasteurization. Never use 

 remnants. 



