22 How to Make Creamery Butter on the Farm 



them covered. If possible send pail and all to the sep- 

 arator just as soon as you get through milking. 



Barn Taint. This is caused by keeping cows in 

 crowded, unsanitary, poorly ventilated and poorly 

 lighted stables, or by leaving milk and cream in barns, 

 or by leaving hand separators in barn or allowing 

 dust to drop in milk when milking. When milk is 

 cooling in a place where odors exist and the tempera- 

 ture of the milk cools below the temperature of the 

 air, the oxygen of the air enters into the milk and 

 cream, carrying odors that are in the air. This is one 

 of the main causes of barn flavor. 



Metallic Flavor is caused by keeping milk or cream 

 in old rusty cans, ripening cream in vats not properly 

 tinned, using poorly tinned starter cans or using any- 

 thing where the milk comes in contact with metal 

 when sour. Ripening cream to .&% acid also causes 

 metallic flavor. 



