Fresh milk, long-life milk which is good? Experts explain: the difference in the way different processes
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What is the difference in nutritional value between fresh milk and long-life milk?
Fresh milk, milk powder, milk powder, which is the best milk product nutritional composition? It is recommended that adults drink 480 c.c. of milk daily to replenish calcium and related nutrients.
The nutritional composition of fresh milk and milk for life is the same and both do not contain preservatives
In terms of price, milk is cheaper than fresh milk, but many people think that the preservatives are added to milk so that it can last longer than fresh milk, so they would rather buy the more expensive fresh milk.
Many consumers wonder why fresh milk is made from raw milk or fresh milk, and why fresh milk needs to be refrigerated, while shelf-stable milk can be kept at room temperature for a longer period of time.
The difference between the two is in the sterilization, filling and packaging methods, not the addition of preservatives. According to the “Scope and Limits of Use and Specifications of Food Additives”, preservatives are not allowed to be added to fresh milk and milk for long term.
Different sterilization methods, but no superiority or inferiority
what is long life milk
Fresh milk is milk made from raw milk, packaged and frozen for drinking after heating and sterilization.
The nutritional value of fresh milk and milk for long term use is comparable, so you can choose according to your personal preference.
As for the product of raw milk or fresh milk, it can be stored at room temperature after sterilization. There are two types of sterilization methods, one is ultra-high temperature instant sterilization with aseptic processing and packaging technology, and the other is high temperature and high pressure sterilization method.
Both of these heating methods can effectively kill all microorganisms and their spores, and the package is an airtight container, so it can be stored at room temperature for several months.
Fresh milk tastes better and smells better, so it is more acceptable to the public, but the price is significantly higher than the shelf-stable milk. Regardless of the type of dairy product, it is recommended to have 2 cups a day (1 cup 240 c.c.).
Which is more nutritious, milk or fresh milk? No preservatives and no ice?
Many parents ask Dr. Wiley, “Why does fresh milk need to be refrigerated, but not the milk? Is it because of the preservatives added to the milk? In fact, it is a very common misconception that preservatives are added to milk. The way preserved milk is sterilized is different from fresh milk, and the way it is stored is also different.
For parents who want to provide their children with the calcium nutrition they need to grow up, in addition to commercially available fresh milk, Dr. Wiley also suggests that high-calcium, shelf-stable milk drinks are an easy and convenient alternative to fresh milk. In particular, milk beverages with calcium and other essential nutrients can be a good and healthy choice for children.
Doctors recommend that elementary school students can drink high-calcium cow’s milk daily, which has vitamin D, calcium, probiotics, lutein and other nutrients, which is not only portable, tasty and healthy!
The key is that the sterilization method is different from that of fresh milk.
The so-called “preserved milk” (quality in accordance with national standard CNS13292) refers to dairy products made from raw milk or fresh milk, which are sterilized by high pressure or high temperature, and packaged in sterile containers for consumption, and can be stored at room temperature.
The reason why it does not need to be refrigerated like fresh milk is that it is made from raw milk and the heat-resistant spores that cannot be completely killed during the sterilization process of fresh milk are almost completely eliminated by the “ultra-high temperature instantaneous sterilization method”. It only needs to be stored at room temperature, not in the refrigerator.
Aseptic Filled Packaging
Aseptic filling is used, and multiple layers of aluminum foil are applied to the paper container to block light and air, so it can be kept sterile even at room temperature.
Refrigerated fresh milk: The fresh milk is not packaged in aseptic packaging, and is packed in regular cartons, so it needs to be refrigerated to avoid the increase of bacteria.
Although fresh milk is made from raw milk as well as preserved milk, the fresh milk sterilization method cannot completely kill the heat-resistant spores of the bacteria in raw milk, so it must be refrigerated throughout the whole process, and the shelf life is only about 10 days.
However, the preservation period of fresh milk is only about 10 days.
However, some people like to freeze both the milk and the fresh milk in the freezer because they think it tastes better when it is frozen.
Who has the highest nutritional value, the milk or the fresh milk? Doctors: The calcium content of the milk is comparable to that of fresh milk.
Parents let their children drink milk beverages, such as milk and fresh milk, most of them are to let children take in calcium and protein and other nutrients. However, because of the use of ultra-high temperature instant sterilization of milk, some parents may be concerned that the milk through the high temperature sterilization process, whether the nutrition will also be eliminated together? Will the calcium content of the milk be as high as that of fresh milk?
In fact, the nutritional value of cow’s milk and fresh milk are similar. Among all the nutrients, calcium in milk is a relatively heat-resistant nutrient. Therefore, milk that has undergone instantaneous sterilization at high temperatures will still have the same amount of calcium as fresh milk and will not lose calcium due to the sterilization process.
In addition to calcium, the nutrients in raw milk, such as protein, fat, and carbohydrates, are also retained through the high-temperature sterilization process, so there is no need to worry about the loss of nutrients in the milk. According to the Food and Drug Administration’s Nutrition Facts database, the nutritional value of raw milk is similar to that of fresh milk. In addition, it is easy to store the milk without ice, so it is more convenient than fresh milk.
Drinking milk for calcium is not enough! Calcium deficiency is common in children, and several nutrients should not be ignored
From school children to adults, it is surprising that almost all have an important nutrient intake problem, this nutrient is “calcium”. Many parents can’t believe it, thinking that they give their children milk and fresh milk every day, so they should get enough calcium, right? In fact, the amount of calcium intake in the general diet is still not enough.
Calcium is the main component of the body’s bones and teeth, and insufficient intake will cause poor bone growth in children. In addition to calcium, vitamin D and protein, which are related to growth and development, are also nutrients that doctors recommend that parents should not ignore when supplementing their children’s nutrition.