Formulated milk powder should be uniform and creamy after brewing. It is a relatively common phenomenon for the brewed milk powder to appear small and granular. For example: 1. incorrect brewing method: the water temperature used in the process of brewing milk powder is too high, or adding milk powder first and then pouring water, which can easily lead to granularity in the brewed milk powder. 2. unsuitable environment for milk powder storage, so that the milk powder inhales too much water and clumps, it will easily appear more large particles in the brewing process. It should be discarded and not fed to the child again. 3, when brewing milk powder, the ratio of water and milk powder is not properly mastered, the concentration is too high when also easy to appear granular, you need to master the correct brewing method to avoid the appearance of particles.