Cow milk is a nutritious liquid and known to be consumed by humankind for centuries. Its consumption had probably started with the domestication of the cow. Nowadays, milk is processed before packaging to ensure that harmful bacteria in the milk are killed. Apart from being popular as a beverage, cows’ milk is used to make a large number of products, including cheese, cream, butter, yogurt, liquid milk, ice cream, whey protein, and many more. In cows’ milk’s raw state, more than 87 percent of its chemical composition is water, while the other 13% consists of such dietary components as butterfat, whey and casein proteins, lactose (milk carbohydrates/sugars), and ash (vitamins and minerals).