14 



A Handbook for Dairynien 



A Foxboro Recording TluTinoiiictcr installed on the exterliir 

 of a liaeteriologieal cold sloi"in'(> vanlt. The tube connecting 

 llie linllj passes tlirongli tlic wall. Permanent records of the 

 exact temperature are thus nuiintained and unnecessary open- 

 ing of the door to the vaull is eliminated. 



77((' Second Da/j'.s I'rojxujntion. 



For tlie .second day, tlic milk for the .starter is 

 srlefted as on the first day. It i.s pasteurized, and 

 tliis time is cooled to 70 V. Ixrause the organisms 

 have become more acti\'e, and lience do not require so 

 iiigh a temperature to grow. Instead of inocu- 

 lating with powder, as was done the first da}^, the 

 mother starter already prepared is thoroughly 

 mixed with the milk. Only a very small amount is 

 required, perhaps a tablespoonful to a quart bottle. 

 Since this starter ma}' have the flavor of the media 

 used in the laboratory culture, it may be necessary 

 that it be carried one or two days more to eliminate 

 it. After the flavor has become normal, the mother 

 starter is ready for use. 



