Nowadays, there are more and more kinds of milk on the market. How should we choose? At the same time, what should we look forward to when we buy milk? How do you look at the shelf life? Do not worry, here's what we can do for you. A few questions about milk, come and see it.
Kind of milk
Pasteurized milk. Pasteurized milk means pasteurization, which requires refrigeration at 4°C-10°C. It is currently popular. This kind of disinfection method can retain the nutrients in milk to the greatest extent, and also can make the nutrient components in milk obtain better preservation. It is one of the most advanced milk disinfection methods in the world.
Room temperature milk. Normal temperature milk refers to the use of ultra-high temperature sterilization, which can kill all harmful bacteria and extend the shelf life to 6-12 months without refrigeration. However, milk nutrients can be greatly damaged.
Restore milk. Milk powder should not be used for pasteurized milk, but room temperature milk, yogurt and other dairy products are available, but the raw materials must be marked as "reconstituted milk" or "water and milk powder."
Fresh milk. In many developed countries, unsterilized raw milk is the most popular among consumers, but the price is also the most expensive. The newly extruded milk contains antibacterial active substances such as lysozyme, and can be stored at 4°C for 24 hours to 36 hours. This milk does not need to be heated, and it is not only nutritious but also retains some of the trace physiologically active ingredients in milk, which is good for children's growth.
Sterile milk. Sterilized milk is stored for a long time, milk is fully sterilized during processing, and bacteria that are beneficial to the human body are basically “necked on the net, and the nutrients of milk are also destroyed. This type of milk is packaged. It is similar to fresh milk, most of them have a shelf life of 30 days or more, and the shelf life of some sterilized milk is more than 6 months.Sterilized milk is generally rich in taste, but there is a certain loss of nutrients, and B vitamins are 20%. ~30% loss.
No anti-milk. Anti-milk-free refers to milk produced from raw materials that do not contain antibiotics.
Water milk. Although the output of water milk is low, the protein, amino acid, milk fat, vitamins, and trace elements contained in milk are higher than those of black and white flower milk. According to the relevant scientific research department of the country, the quality of hydro-milk is very good. It can be regarded as the best in milk, its value is equivalent to twice that of black-and-white milk, and the most suitable for children's growth and anti-aging zinc, iron, calcium content is particularly high , amino acid, vitamin content is very rich, is a nutritious food for both young and old.
Milk storage method
Fresh milk should be placed in a cool place immediately, preferably in the refrigerator.
Do not allow milk to be exposed to sunlight or light. Daylight and light can destroy several vitamins in milk, and it can also cause them to lose their aroma.
Keep the milk in the refrigerator and cover the bottle to prevent it from scenting into the milk.
Milk is poured into containers such as cups, teapots, etc. If you have not finished drinking, you should replace the lid with the lid and return it to the refrigerator. Do not return the bottle to its original position.
Overcooling also has an adverse effect on milk. When milk is frozen in ice, its quality can be compromised. Therefore, milk should not be frozen and can be stored in the refrigerator.
Finally, take a look at the shelf life of milk.
The shelf life of milk
Cycle: The shelf life within one week, the shelf life is relatively short, usually 3 days, this kind of milk adopts the low temperature pasteurization technology. The crowds who are suitable for the morning at home can take milk from the house; or people who are closer to the supermarket every evening in the evening can go to the supermarket to buy enough milk for the family the next morning. (Hint: To buy before 5 o'clock, otherwise it's generally not going to be late). Of course, this kind of short-term house-type boxed milk has a shelf life of 7 days.
Month: Generally about 30 days or 45 days. The use of high-temperature sterilization, because the microorganisms in the bacteria have all killed, so without opening the package, it is not easy to degenerate, long shelf life, suitable for people who can lift the whole box and office workers (because office workers can not go before 5 Supermarkets and around 8 o'clock to send milk to the home and so on, most of the time at work is currently 8-9, this time some have been in the unit, and some are already on the road).
Semi-annual period: generally within 6 months. It belongs to continuously sterilized milk. Suitable for all people, especially some remote areas. (Problem of transport time).
When buying, pay special attention to the shelf life.
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