As long as the color is uniform and the powder is natural, there will be no problem if the color is uniform. Milk powder is inherently white and yellowish. If it is white or other unnatural colors, be careful. The color of milk powder is first of all related to the source of milk. Secondly, the formulas of different brands are also different. The types of grass that cattle and sheep eat are different, and they are also different in different seasons. Therefore, it is normal for the color of milk powder to be different and does not affect the quality.

Reasons for different colors of milk powder:

1. Different milk sources have different colors. The color of milk powder is first related to the milk source, that is, to the color of the milk produced by the cows. The slight yellow color of milk is caused by the small amounts of yellow riboflavin, lutein and carotene. These substances mainly come from the forage that cows eat. For example, when cows eat forage that contains high levels of carotene, the carotene is transferred into the milk through the blood, causing the milk to turn yellow. Generally speaking, fresh forage carrot content will be higher than dry forage. Therefore, the color of milk produced by cows fed with fresh grass will be more yellow and the taste will be more fragrant; the color of milk produced by cows fed with hay will be whiter and the taste will be slightly lighter.

2. Different fat content and different colors. The fat content in milk powder also affects the depth of color. In daily life, when fresh milk is heated, a layer of light yellow oil will float on it. Generally speaking, that is the fat in the milk. If the milk powder contains high fat content, the color of the milk powder will be slightly yellow. On the contrary, if the fat content is low, the color of the milk powder will be slightly whiter. If you pay attention, you will find that skimmed milk powder and middle-aged and elderly milk powder are whiter in color.

3. Different processing techniques and different colors. Different processes used in milk powder processing will also affect the color of milk powder. If the temperature during processing is higher, the color of the milk powder will also be yellower. Furthermore, the particles of milk powder are larger and the color will be yellower. If it is finer, it will be whiter. Generally speaking, the particles of spray-dried milk powder are smaller than those of drum-drying. Also, during the processing, different nutrients added to the milk powder (i.e. different formulas) will also affect the color of the milk powder. For example, some brands of milk powder will add lutein, so the milk powder will appear yellower.