1. Wash your hands thoroughly with soap and water before preparing the milk formula to reduce the risk of contamination.
   
   
2. Use fully boiled water for formula preparation. Sterilize milk bottles, teats and utensils.
   
   
3. Add previously boiled water to the bottle to the required level. It is recommended to use lukewarm water above 40 Celsius, to mix with the milk powder.
   
   
4. Follow the directions for use on the milk can and add the required number of levels of milk powder to the bottle. Please pay attention to the scoop size before preparing the milk as scoop size varies by different brands. Avoid mixing scoops from different brands. Scoop size may be different for the same brand  when there is a new version launched.
   
   
5. Shake or swirl the bottle gently to dissolve the milk powder completely. If the temperature of milk formula prepared is still high, do not feed the baby directly. You can cool it down by putting the milk bottle in a bowl of cold water, or with running tap water.
   
   
6. The best temperature of prepared milk formula for your baby to drink is about 40 to 45 Celsius, slightly higher than the body temperature (38 Celsius). Before feeding your baby, check the temperature of the prepared feed by dripping a little onto the inside of your wrist. It should feel lukewarm, not hot. If it still feels hot, cool some more before feeding.
   
   
7. Never save unfinished feeds. Throw away any feed that has not been consumed within two hours. Never use a microwave to prepare or warm-up milk feeds. Microwaves heat unevenly and may cause 'hot spots' that could scald the infant's mouth.
   
   
   

Reference: World Health Organisation