Moist, lumpy milk powder should not be given to your child again. A good quality milk powder should be loose and soft, even if there are a few lumps present when you open the package, they can be easily broken up after a gentle shake or a tap with a spoon. If the milk powder is lumped together after absorbing moisture, the lumps are hard and large, and the lumps formed are not easily broken up, indicating that the milk powder has deteriorated. This kind of milk powder to the child after feeding, on the one hand, due to the loss of its nutrients, nutritional value decreased, is not conducive to the healthy development of the baby, on the other hand, it is also easy to cause the baby to suffer from some digestive tract diseases. So open the package of milk powder storage process, must pay attention to as much as possible sealed, placed in a dry, cool, ventilated environment storage, avoid direct sunlight, to avoid moisture absorption lumps.