Do you know What is Yak Milk and Colby Cheese. If you are looking for the definition of Yak Milk and Colby Cheese or want to know what is Yak Milk and Colby Cheese?, then this is where you will fetch your answers. Well, in simple terms Yak milk is the milk obtained from yak. It is sweet to taste and has rich fat content. While Colby cheese is a semi hard American cheese made from cow's milk Both these products are unique in their own ways. Yak Milk is a Not Available colored dairy product and Colby Cheese is Yellow 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. Yak Milk bears Sweet flavor with a Sweet aroma whereas Colby Cheese has Sweet flavor and a Mild and Sweet aroma. The color, flavor and the aroma of these products depict their origin. Yak Milk originated in Tibet, whereas origin of Colby Cheese is traced back to Winconsin, United states.