Generally, milk will freeze if it is stored at ten degrees below zero, and the longer it is stored, the larger the frozen area will be. At this time, the fat and protein in the milk will be separated, so pure milk should be placed in the refrigerator freezer area to save, while maintaining the temperature between 3 to 5 degrees can be, if it is unpacked pure milk, it is best to drink within 2 hours, so as not to breed bacteria deterioration.

Note: Pure milk after freezing is also can drink in moderation, and did not produce harmful substances, just milk protein and other nutrients will be lost, nutritional value and taste greatly reduced. But should not drink more, so as not to cold too much, stimulate the stomach, diarrhea, abdominal pain and other discomforts, it is generally recommended to drink 100ml or less.