Using expired milk to make dough is equivalent to yeast, which can make steamed bread fragrant and sweet, and it also smells like milk. After the expired yogurt is diluted with water, it is sprinkled on the composite wood floor and wiped with a mop to make the floor as bright as new. Because the taste of milk will turn sour after expiration, it increases the lactic acid content in milk. Lactic acid is a natural cleaner, which can clean the wooden floor.

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Precautions for milk use:

After the milk is frozen, the fat and protein are separated, and casein is concentrated into powder. The taste is obviously thinner than that before freezing, and the nutrients are not easily absorbed.

Vitamins B and C in milk will disappear quickly in the sun. Some data show that even weak sunlight for more than 6 hours will reduce its vitamin B by half. At the same time, lactose is easy to ferment, which makes milk go bad. Therefore, it is best to store milk in colored or opaque containers and in a cool place.

People's Daily Online-Expired milk is also used for counting expired milk.