The difference between the so-called organic, pollution-free, ordinary milk, mainly a national certification system. Organic milk according to the requirements should be processed organic fresh milk, organic fresh milk requirements are very high, the first condition is that the cows are healthy, the cows are sick without antibiotics; then the environment of the dairy farms to be free of all kinds of pollutants; the cows eat the feed and grass are strictly in accordance with the organic standards of planting, processing. But in China, there is no pollution in the area?