The amount of milk is calculated by the amount of water, first pour good warm water, adjust to the amount needed, and brew the milk powder according to the ratio provided on the instructions of the milk powder, generally 30ml of water, a small spoon of milk powder, some brands are equipped with a larger spoon, which is 60ml of water. The proportion of milk powder is very important, too thick easily cause constipation in babies, affecting metabolism; too thin will lead to malnutrition. Try to use 40 ℃ warm water when brewing milk powder, the temperature should not be too high, it will burn the baby’s oral mucosa, but also affect the quality of milk powder. If the temperature is too low, symptoms such as stomach bloating and diarrhea will easily occur. Usually pay attention not to feed your child too much milk at one time to avoid indigestion, bloating, diarrhea, etc. Your baby needs to add complementary foods after 4-6 months.