Condensed milk is a beverage made of fresh milk or goat's milk after disinfection and concentration. Its characteristic is that it can be stored for a long time.
As early as more than 5,000 years ago, ancient Indians and Egyptians took milk and goat's milk as important foods and drinks. Milk is easy to spoil, and people have been exploring ways to keep milk from spoiling for a long time. It is said that in the13rd century, the Mongolian army led by Genghis Khan of China once carried a paste-like condensed milk when fighting in Eurasia.
1827, France's n? 6? 1 apel first invented the technology of condensed milk to make condensed milk. Appel once put sugar-free condensed milk into cans and gave it to the French navy at that time. But the industrial production of condensed milk is 30 years later. American g? 6? 1 Borden witnessed the tragedy that several babies in the same boat died because of eating spoiled milk during a sea trip, so he sprouted the idea of studying milk preservation technology. After repeated research and consulting many people, he finally developed the technology of producing condensed milk by vacuum distillation to concentrate milk to about1/3 of its original volume. He also added a lot of sugar to condensed milk, which reached more than 40% of the weight of the finished product, which actually inhibited the growth of bacteria. 1856, Boden obtained the invention patent of sweetened condensed milk. 1858, Boden built the world's first condensed milk factory in the United States. The canned condensed milk produced by Boden was used by the army in the American Civil War (1861-1865), which proved its practicability.
1866, American Becky also established a condensed milk factory to produce sweetened condensed milk. Meinberg, a technician of Baiji Company, has also studied the new method of producing condensed milk. Before that, people didn't know the real reason of fresh milk spoilage. 1857, a famous French biologist and chemist l? 6? 1 pasteur discovered for the first time that food spoilage was caused by microbial reproduction. Pasteur invented the heating sterilization method for wine and beer in 1865 and 1873 respectively. Inspired by this, Meinberg invented a new milk concentration method in 1884, and after the condensed milk was canned, it was sterilized at high temperature to produce sugar-free condensed milk that could be preserved for a long time.
Ingredients: The carbohydrate and anti-blood acid (vitamin C) in condensed milk are more than those in milk powder, while other ingredients, such as protein, fat, minerals and vitamin A, are less than those in milk powder.
Edible: After the iron cover is uncovered, condensed milk is easy to deteriorate, rot and be infected with bacteria if it can't be eaten all at once and there is no refrigerator at home, while milk powder does not have this shortcoming.
Packaging: condensed milk is mostly packed in tin cans, and milk powder is packed in plastic bags or tin cans.
Shape: condensed milk is liquid, and milk powder is solid granules.
Condensed milk is a kind of milk product, which is made by evaporating fresh milk to 2/5 of its original capacity, then adding 40% sucrose and canning. Some people are influenced by "everything that is concentrated is the essence", so they give condensed milk instead of milk to their children. This is obviously wrong. Condensed milk is too sweet and must be diluted with 5 ~ 8 times of water. However, when the sweetness meets the requirements, the concentration of protein and fat is often reduced by half compared with that of fresh milk. If infants and young children are fed, of course, they will not gain weight, look pale and get sick easily. If water is added to condensed milk to make the concentration of protein and fat close to that of fresh milk, then the sugar content will be high. Feeding children with such "milk" is also easy to cause diarrhea in children. In addition, if children get used to the sweet taste, it will bring difficulties to add complementary food in the future.
In the middle of19th century, one day, a passenger ship sailed for new york from the sea. Many people on the boat hold the railing and look out at the water and sky, enjoying this spectacular natural scenery.
The ship was sailing when suddenly there was a scream from the deck, followed by a cry. This sudden scene caused a man named Geer? 6? 1 Burton's American attention. He immediately rushed over and pushed through the crowd of onlookers. When he saw it, he suddenly felt that the air was frozen. Several women are holding a sea burial ceremony for some lovely babies. Grier Burton endured grief and asked the women about the cause of the baby's death. The thing turned out to be this: at that time, although people generally used milk to feed their babies, they didn't know how to preserve it so that it would always be fresh and not go bad. These young lives died of poisoning after eating the deteriorated milk. Gore Burton was very sad. During the whole voyage, the sad scene always stung his heart deeply, and the bodies of cute little creatures always appeared in front of his eyes.
Gore Burton made up his mind to work out a way to preserve fresh milk. After returning to new york, he immediately devoted himself to the research and development work, drafting every day, and delving into it sleepless nights. He consulted many people, and after numerous experiments, he finally found a method of vacuum distillation, which can successfully achieve the purpose of preserving fresh milk. Gore Burton was not carried away by this achievement. He kept on studying and experimenting. He also dissolved a proper amount of sugar in milk, which further improved the ability of milk to prevent bacterial corrosion.
Gore? 6? 1 Burton named the product he developed "condensed milk". He founded the world's first condensed milk processing factory in new york on 1853. Condensed milk is very popular with mothers. Two years later, Ger Burton used the canned packaging that came out soon for the preservation of fresh milk, and condensed milk became what we are now familiar with.
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