From a scientific and safety point of view, no matter what brand of milk powder, the brewed milk powder should not be stored for more than 2 hours at room temperature, and not more than 1 hour in hot weather. If you leave it too long after brewing milk powder, you will not only lose nutrients, but also breed bacteria that can cause diarrhea, vomiting, and even fever, especially in summer and autumn. The frequency of seasonal diarrhea is high, and if you give your baby brewed milk powder that has been left for too long, it is more likely to lead to diarrhea. In order to avoid such incidents, it is recommended to feed your baby regularly and at regular intervals, and the milk powder should be brewed now, according to the feeding amount of your baby, and if a small amount of milk powder is left, it should be poured out directly or consumed by adults. In addition, good habits should be developed when feeding your baby, and regular feeding is needed when everything is normal in your baby’s body, so as not to cause a vicious cycle of feeding difficulties and other more serious consequences.