First, let's take a look at the production process and shelf life of the production process to determine the length of the shelf life of milk. It is understood that pasteurized milk refers to the milk heated to 75 ℃ ~ 90 ℃, instantly kill pathogenic microorganisms, maximum retention of nutrients and active value. The market has added fresh milk preservation up to 7 ~ 10 days, without any additions, such as the net herd of fresh milk for 2 ~ 3 days, and requires the preservation of 2 ℃ ~ 6 ℃ environment.
Warm milk is ultra-high-temperature sterilized milk, at 130 ℃ ~ 140 ℃, completely destroy which can grow microorganisms and spores, and filled in aseptic state. Europe and the United States developed countries legal shelf life is usually within 6 months, and
Stored at room temperature for nearly a year, basically belong to the Chinese region exclusively to listen to the experts again to listen to the reasonable advice
First of all, through the sensory judgment, if there is no problem with the sensory judgment, the milk is still drinkable. Milk shelf life of the development of the majority of consumers to leave a way back, a bottle of milk for the shelf life of 7 days, its actual shelf life may be 10 days, the milk can not really be a shelf life suddenly bad.
If the milk to the shelf life of the period, but from the various sensory judgment are not spoiled, then the milk is still safe to drink. However, if after four or five days, although not spoiled, but the nutritional value of the remaining, this time it is best not to drink.
Experts point out that if the milk is given to children under 2 years old to drink, even if the shelf life is not bad, do not give the child to drink again. Because expired milk more or less some bacteria, these bacteria on the immunity of adults may not be able to threaten, but the child's stomach is still weak, low immunity, in order to avoid the threat to health, it is best to give the child to drink no additives, the shelf life of the good milk.
In addition, milk is a well-known nutrient, the elderly at home are accustomed to saving, may risk their health to drink expired milk.