50 degree milk is too hot for newborns and may cause burns; the recommended temperature for formula use with newborns is about 40 degrees Celsius. When breastmilk is insufficient or breastfeeding is not possible, infant formula feeding is required. When preparing infant formula, it is necessary to pay attention to the hygiene and cleanliness of the surrounding environment, as well as the sterilization of milk preparation utensils and bottles. It is recommended to use lukewarm water below 70℃ to avoid destroying the enzymes in the milk powder; however, the brewed milk should not be consumed directly, and should be cooled down to about 40℃ before feeding to avoid scalding. During artificial feeding, pay attention to the amount of milk powder to avoid malnutrition; pay attention to the feeding position and the flow rate of the bottle in the middle of feeding, and pay attention to discharging the milk burp after feeding to avoid choking and coughing.