1, sterilization temperature is different. Fresh milk is also called pasteurized milk. The pasteurization method with continuous mild heating has a relatively low sterilization temperature, generally 63 to 85 degrees Celsius, which can kill all pathogenic bacteria and ensure the safety of milk. Pure milk is sterilized by instantaneous high temperature, and the temperature reaches 135 to 150 degrees Celsius, which can kill all microorganisms in milk.
2, the shelf life is different. Fresh milk is always inseparable from the cold storage environment of 0 to 10 degrees Celsius, that is, it should be stored in the refrigerator for 2 to 7 days in the short term; Pure milk has a long shelf life, which can reach 2 to 12 months at room temperature.
3. Different nutritional losses. Because of the low sterilization temperature, fresh milk can retain the nutritional components of milk relatively completely; However, pure milk loses more nutrients.