Baby milk cans opened more than a month is generally not recommended to continue to breastfeed the baby, easy to cause the baby indigestion or acute and chronic gastroenteritis and other discomforts, the baby’s physical health to cause unnecessary harm. Usually the baby’s open can save date is not more than one month, if more than one month easy to lead to the nutrients in the milk powder corruption and deterioration, breeding bacteria, the baby after eating nausea, vomiting, bloating, diarrhea and other indigestion or gastroenteritis risk increases, is not conducive to the baby’s physical health. Although not all open cans of milk powder for more than a month are problematic, but the baby’s food safety is very important and should not be risked. It is recommended that parents usually to strengthen the baby’s dietary care, formula feeding should pay attention to the milk powder now feeding now brewing, to ensure that the milk powder in the expiration date, to avoid the opening of the can for too long, at the same time to strictly grasp the proportion of milk powder brewing and water temperature, etc., to ensure that the baby eating safety, such as the consumption of open cans of long time of the milk powder after the occurrence of abdominal pain and diarrhea, bring the baby to the hospital in a timely manner.