Some designs use vacuum evaporation tanks, which first concentrate milk into cakes and then dry it to make powder; Some designs involve spreading the preliminarily concentrated milk on a heated drum, peeling off the thin milk film that has been baked, and then making powder; The best method of making milk powder is the spray method invented by American Percy in 1877. This method involves first vacuuming the milk to 1/4 of its original volume to form concentrated milk, then spraying it in a mist into a drying room with hot air, dehydrating it, and making it into powder. After rapid cooling and sieving, it can be packaged into finished products; The formula and process of infant milk powder are the most exquisite. Active ingredient such as lactose, DHA, nucleotide (or RNA) are added, and the ingredients close to breast milk are considered as far as possible.
Classification Introduction
1. Whole milk powder: It basically maintains the nutritional composition of milk and is suitable for all consumers. But it is most suitable for middle-aged and young consumers.
2. Skimmed milk powder: It is processed from skimmed milk and has a mild taste. It is suitable for middle-aged and old people, fat people and consumers who are not suitable for taking fat.
3. Instant milk powder: Similar to whole milk powder, it has the characteristics of good dispersibility and solubility, and is generally sweetened instant large particle milk powder or sprayed lecithin milk powder.
4. Sugared milk powder: It is processed from cow's milk with a certain amount of sucrose added, suitable for all consumers, and often has instant characteristics.
5. Infant formula: Generally speaking, infants refer to children under 12 months old, and young children refer to children aged 1-3 years old. Therefore, this formula is generally prepared in stages and is suitable for consumption by infants and young children aged 0-6 months, 6-12 months, and 1-3 years old. According to the physiological characteristics and nutritional requirements of infants and young children at different stages, it is suitable for protein, fat, carbohydrates The five major nutrients, including vitamins and minerals, have been comprehensively fortified and adjusted. In addition, there is an Australian specialty formula with multiple abilities, which is divided into smaller sections and is used for infants aged 0-100 days, 100-180 days, 180-360 days, and over 1 year.
At present, infant formula is mostly made from cow's milk as the basic raw material and then "breastfed", which is to simulate the composition of human breast milk as much as possible. Generally, infants who consume infant formula until around one year old do not have concerns about nutritional deficiencies. However, infant formula cannot contain beneficial ingredients such as enzymes and immune proteins that can aid digestion in breast milk and fight against bacteria.
6. Special formula milk powder: It is suitable for consumers with special physiological needs. This kind of formula milk powder is based on the physiological characteristics of different consumers. It removes some nutrients from milk or strengthens some nutrients (or both), so it has certain specific physiological functions, such as middle-aged and elderly milk powder, low-fat milk powder, diabetes milk powder, low lactose milk powder, bifidobacteria milk powder, etc.