276 DAIRY TECHNOLOGY 



three-eighths inch square and sunken not less than one- 

 eighth inch. The contents of any package less than ten 

 pounds will be considered as a brick or roll." 



Test for Renovated Butter. 



Spoon Test. Heat about five grams of the sample to 

 be tested in a large spoon over a small flame. Genuine 

 butter will boil quietly, but with the production of con- 

 siderable froth and foam. Renovated butter or oleo- 

 margarine will sputter noisily, but will not foam much. 

 The curd in the former will be small and finely divided: 

 while in the latter it will be found in larger masses or lumps. 



To distinguish renovated butter from oleomargarine 

 it is necessary to use the butyro-refractometer or the 

 chemical tests as described under " Oleomargarine." 



