The bags are pasteurized, which kills spores instantly, but it is not completely sterilized. The storage time is not very long, but the flavor and nutrition of the milk are better maintained. The shelf life of cartoned milk is longer than that of bagged milk. Personally, I think there are more additives in boxes than in bags. Boxed products with a long shelf life are ultra-high temperature sterilized milk. Generally speaking, the longer the shelf life, the higher the temperature and the longer the heating and sterilization time. Those boxed ones have a long shelf life and a high cost. Both of them have been pasteurized and can be eaten with confidence. Generally speaking, the longer the shelf life, the higher the temperature and the longer the heating and sterilization time. Heating can destroy the vitamins in milk, cause calcium precipitation, and reduce the nutritional quality of milk

Nutrition: Boxed is better than bagged. Although the two use different sterilization processes, the nutrients are not lost. Boxed milk is a paper composite packaging with fewer harmful precipitates than plastic bags. Fresh milk, also called pasteurized milk, is made from fresh milk. Pasteurized fresh milk is raw milk that has been heated at a low temperature of 85°C. Since the temperature of the sterilization method is not high, it can kill harmful bacteria while maximizing the Maximize the preservation of nutritionally active substances in milk. It is transported directly from the cow when it produces milk, put into a glass bottle and put into our hands. Relatively speaking, this kind of milk is more natural and pure. Bulk milk definitely loses less nutrients than processed bagged milk in supermarkets. If the bulk milk has been sterilized at high temperature, it is recommended to buy bulk milk because the shorter the shelf life, the less nutritional damage will be

The milk that is now milked is more "dangerous", it is susceptible to contamination in many aspects; the health of the cow, the hygiene of the milking place, the health of the milker, the hygiene of the milker's hands, and the hygiene of the milk container And sterilized milk and other unprocessed fresh milk will contain a lot of bacteria or bacterial toxins. For example, aflatoxin appeared in the milk in the past few years because the cows ate unhygienic feed and rotten feed.