1, the processing raw materials of the two kinds of milk are the same, and both are made of fresh milk. The most essential difference between the two kinds of milk is the difference in sterilization methods.

2. Fresh milk, also known as pasteurized milk, takes fresh milk as raw material. Pasteurized fresh milk is fresh milk that has been heated at a low temperature of 85℃. Because the temperature of sterilization method is not high, it can kill harmful bacteria and preserve the nutritional active substances in milk to the maximum extent.

3. Pure milk belongs to normal temperature milk, which is ultra-high temperature sterilized milk after instantaneous high temperature sterilization. This milk can be stored at normal temperature. The instantaneous temperature of ultra-high temperature sterilization of pure milk is at least 132℃. This sterilization method can kill all microorganisms in milk, but the milk after sterilization loses a lot of nutrients, especially calcium and vitamins. For example, pasteurized milk is like fresh fruit, while ultra-high temperature sterilized milk is like canned fruit. From the perspective of freshness and nutrition, fresh milk is better than pure milk.