Difference between fresh milk and pure milk , mainly in the following aspects:

1, Sterilization methods are different

Fresh milk raw milk pasteurization, the raw milk is heated to 70 ° C - 72 ° C, over 12-15 seconds. Pure milk's is autoclaved, sterilized at about 130 degrees.

2, Difference in shelf life

Fresh milk has not been processed at high temperatures, there are still some bacteria alive in the milk supply, the shelf life will not be very long, generally can be saved 5-7 days. Pure milk after high-temperature treatment, most of the bacteria have been inactivated, the shelf life of about 1 month.

3, Nutritional value of different

Fresh milk pasteurization temperature is lower, the loss of milk nutrients is very small, high nutritional value. Pure milk after high-temperature heating treatment, so that part of the composition of the milk has changed, so the nutritional value is not as good as fresh milk.