Do you know What is Butter and Yak Milk. If you are looking for the definition of Butter and Yak Milk or want to know what is Butter and Yak Milk?, then this is where you will fetch your answers. Well, in simple terms Butter is an edible fatty solid made from cream and milk by the process of churning. While Yak milk is the milk obtained from yak. It is sweet to taste and has rich fat content. Both these products are unique in their own ways. Butter is a Pale yellow colored dairy product and Yak Milk is Not Available colored. The food gets it color dependent on the ingredients used and the preparation methods employed. Sometimes artificial food colors are added to give the dairy product, a gourmet look. Apart from their color what distinguishes them is their flavor and aroma. Butter bears Salty flavor with a Buttery aroma whereas Yak Milk has Sweet flavor and a Sweet aroma. The color, flavor and the aroma of these products depict their origin. Butter originated in China, India, Japan, Russia, whereas origin of Yak Milk is traced back to Tibet.