THIRTY-SIXTH ANNUAL CONVENTION. 



167 



The average water content in the 20 samples taken from the 

 four tubs was 13.17 percent; highest 13.71 and lowest 12.47 P^i" 

 cent. 



Several churnings were handled in a manner to give varia- 

 tion in the composition of the butter. Samples were then taken 

 by means of a spatula from various portions of the churn and 

 placed in separate sample jars. 



The following is an example of two consecutive churnings 

 showing variation in composition of samples of butter from the 

 same churn. 



Table 2 — Variation in Nine Samples from Same Churn. 





Churn 1 



, High water 





Churn 2. Low water 









Percent 







Percent. 





Sample No. 





































Water 



Fat 



Salt 



Casein 



Water 



Fat 



Salt 



Casein 



1 



15.87 



79.35 



3.81 



0.97 



14.76 



82.29 



2.17 



0.78 



2 



16.36 



78.17 



4.43 



1.5 



14.32 



82.72 



2.40 



0.56 



8 



15.48 



79.87 



3.72 



1.07 



14.i>3 



8v\75 



2.28 



0.74 



4 



16.41 



78.56 



4.17 



0.86 



14.83 



81.96 



2.63 



0.58 



5 



16.11 



78.98 



4.15 



0.75 



14.39 



82.57 



2.26 



0.78 



6 



16.77 



77.86 



4.55 



0.82 



14.95 



81.77 



2.24 



1.04 



7 



15.60 



79.02 



4.41 



0.97 



14 5 1 



82.33 



2.09 



1.(4 



8 



15.47 



79.79 



3.62 



1.12 



14.36 



82.59 



2.07 



0.98 



9 



15.48 



79.68 



3.88 



0.96 



13.84 



83.33 



1.96 



0.87 



Average 



15.94 



79.00 



4.08 



0.95 



14.47 



82.48 



2.23 



0.82 



"I 



A sample made by taking butter from various places m the 

 , churn is fairly representative of the butter in question and the 

 analysis of such a sample is a fair approximation of its chemical 

 content. 



Composition of Half-Worked and Worked Butter. 



It has been the practice for some time to work the butter 

 continuously to the extent of 12 revolutions in the Victor churn 

 and 18 in the Disbrow. When the butter had been worked 6 



