Why is boxed Want Want milk better than canned?

Because of the difference in packaging, canned Wong Chai has an additional high-temperature sterilization process than boxed Wang Chai. This results in a deeper Merad reaction, which produces more brown products and naturally a darker color. As the sterilization time and temperature increase, the reaction gradually escalates and the resulting flavor substances become more complex.

The shelf life is 9 months for boxes and 15 months for cans.

A. Purpose of filling, the purpose of filling is mainly to facilitate retailing, to prevent external impurities from mixing into the finished product, to prevent microbial re-contamination, to preserve flavor and prevent the absorption of external odors and produce a bad taste, as well as to prevent the loss of vitamins and other ingredients, etc..

B. Filling containers, filling containers are mainly glass bottles, vinyl plastic bottles, plastic bags and plastic-coated composite paper bags.

a. Glass bottle packaging. Can be recycled for multiple use, no chemical reaction with the milk contact, non-toxic. High gloss, and easy to clean. Disadvantages for the quality of large, high transportation costs, susceptible to sunlight, resulting in bad smell. Cause loss of nutrients. Recycling of empty bottles of microbial contamination is serious, the general volume of glass milk bottles and the inner surface of the ratio of 4 times the throw bucket, 40 times the milk tanker. This means that the workload of cleaning and disinfection increased.

b. Plastic bottle packaging. Plastic bottles are mostly made of polyethylene or polypropylene plastic, its advantages are: light weight. Can reduce transportation costs, low breakage rate, recycling up to 400 to 500 times; polypropylene has a rigid, acid and alkali resistance, but also resistant to high temperatures of 150 ℃. The disadvantages are: the surface of the old bottles is easy to wear and tear, the degree of contamination is large, not easy to clean and disinfect. At higher room temperatures, the odor is produced after a few hours, affecting the quality and pass rate.

c. Plastic-coated composite paper bag packaging. The advantages of this container: container light, small volume; reduce the cost of washing bottles; impervious to light, not easy to cause loss of nutrients, not recycling containers, reduce pollution. The disadvantage is one-time consumption, higher cost.