Do you know What is Gruyere Cheese and Kefir. If you are looking for the definition of Gruyere Cheese and Kefir or want to know what is Gruyere Cheese and Kefir?, then this is where you will fetch your answers. Well, in simple terms Dairy Product While Kefir is fermented milk made by using kefir grains containing benefiicial yeast as well as probiotic bacteria found in the yogurt. Both these products are unique in their own ways. Gruyere Cheese is a Bright Yellow colored dairy product and Kefir 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. Gruyere Cheese bears Not Available flavor with a Not Available aroma whereas Kefir has Yeasty flavor and a Milky aroma. The color, flavor and the aroma of these products depict their origin. Gruyere Cheese originated in Switzerland, whereas origin of Kefir is traced back to North Caucasus regions.