Second, fresh milk needs to be refrigerated, otherwise it will go bad easily. Although freezing will also make fresh milk lose some nutrition, it is much better than boiling.
Third; Fresh milk is recommended to be drunk directly, and it is best not to add any other substances such as sugar and Gao Legao. If you want to make ice, why not use milk powder? !
Milk should not be frozen. Because milk contains three kinds of water with different properties, among which free water is the most, and it does not combine with other substances and only acts as a solvent. Combined water is water that combines with protein, lactose and salt, and will not dissolve other substances and freeze. Crystal water is the water that exists with lactose crystals when lactose crystallizes. When milk is frozen, free water freezes first, milk freezes from outside to inside, and the surface is covered with dry matter (protein, fat, calcium, etc ...). With the extension of freezing time, the dry matter content in milk increases correspondingly, but the dry matter is not frozen. At this time, the outer color of the milk block is lighter and the inner color is darker. After thawing, protein in milk is easy to precipitate, solidify and deteriorate.