MARKET MILK 205 



with ordinary (not absorbent) cotton and the thermometer 

 held in one of the bottles by the cotton plug. A wire or tin 

 basket to hold the bottles upright in the water is very con- 

 venient. Such a device is shown in Fig. 43. Place the bot- 

 tles in the pail of water and heat until the thermometer shows 

 that the temperature of the milk is 145° to 150° F. Then 

 remove the bottles, change the thermometer from the milk to 

 the water, and add cold water until the temperature of the 

 water is also 145° to 150° F. Put the bottles back in the 

 water and cover with a bath towel or other suitable cloth. 

 Hold in this way at least twenty minutes, and then cool by 

 running water into the pail. When the milk is cooled to the 

 temperature of the tap water it is an excellent plan to pack 

 broken ice about the bottles and hold them in the refrigerator 

 in this way. 



"The milk should not be removed until immediately before it 

 is used, and if bottles are warmed and not used they should 

 be discarded." 



