How to choose fresh milk? With this packaging, vitamins are easily damaged! But excessive heat is even more problematic

 9:06am, 24 July 2025

When you buy milk, you will buy paper boxes or glass bottles. Nutritionists pointed out that commercially available milks use paper boxes because one of the nutrients in milk, vitamin B2, will be damaged when exposed to sunlight, but there are still other nutrients.

There are many brands of fresh milk on the market, and the packaging is slightly different, including paper boxes, plastic bottles, glass bottles, etc. Some people choose to buy it based on their packaging material preferences. Nutritionist Lu Mengfan posted a post on his face fan page to share a cold knowledge. Fresh milk packaging usually uses light-proof paper boxes or opaque plastic bottles, so transparent packaging is less visible. This is because vitamin B2, a rich nutrient in milk, is afraid of light, and will be damaged when exposed to sunlight. Even light used to treat reborn hyperchlorinemia can destroy vitamin B2, so fresh milk is usually not sold in glass bottles. However, of course, there are also glass bottles that are packed in due to marketing considerations, and it is not said that they cannot be bought. Wu Mengfan emphasized that there are many aspects of nutrition. Milk will not have no nutritional value or is not worth drinking because of lack of vitamin B2. It also has excellent protein, calcium, etc.

{9 Ideal temperature is 40-50° C

Compared with the different milks of "Food Power", the tastes vary according to the different methods of heat-killing and killing bacteria, and the impact on nutrients is slightly different. However, for the main nutritional value protein and calcification, different heating methods have little impact. Only a small number of functional ingredients, such as whey protein, vitamins, etc., will be damaged due to the increase in heating temperature, but these ingredients are not much in raw milk.

When the weather is cold, many people are used to heat up the cold milk, but do not overheat and boil it when cut. According to the dairy knowledge shared with consumers by cow milk, vitamins are the most likely to be lost during the heating process, and proteins can also cause sexual changes, which makes it difficult for the human body to absorb, but the most important quality is not affected by high temperature. It is still recommended to heat it in a gentler way. The ideal heating temperature is 40-50° C. After adding, you can dip it with your fingers. The skin will feel slightly warm and not feel the burn. If it feels very burning, it is excessive heating.