Most parents are aware not to make the feeding bottle too hot as in can burn the baby’s mouth. What most people do not know is that overheating breast milk damages the nutritional elements in the milk. If you overheat the bottle – or keep it warm for a long time, you may damage nutritional elements such as valuable fats and bioactive proteins. Nutritional elements are damaged as a combination of high temperature (above 45 degrees) and time. Scientific studies show this to happen regardless of the warming method used.

Nutritional elements are important for the development of the child – fats are very important for development of the baby’s brain, and the bioactive proteins are among others important for baby’s digestion. This is of course the reason why you want to preserve these.

Fortunately, this may be done quite easily. All you have to do is to keep a close eye on temperature development when heating the baby bottle. This is where milkymeter helps you. When heating the bottle in the microwave and using milkymeter, temperature is measured with several temperature sensors to calculate a safe average temperature that will help you preserve the valuable nutritional elements.

Furthermore, it is important that you store breast milk and mixed formula correctly. Both may be kept refridgerated for 24 hours.

What method is the best when warming baby bottles? In principle, there are no right or wrong method. What is important regardless of method is that temperature in the milk does not exceed 45˚ C.  Our studies show that no matter if you heat in water bath, bottle warmer or microwave, there will be areas of the milk getting warmer than body temperature, and where nutritional elements in the milk are at risk. As nutritional elements are damaged at a combination of temperature and time, and the time in waterbath or bottle heater is typically 10 times longer than in microwave, the potential damage of using water bath is 10 times higher than if using microwave, if you use milkymeter to measure temperture in the microwave to avoid overheating.

If you want to know more about nutritional elements in milk, take a look at the section In doubt about microwaves where we have collected articles and scientific studies about heating of breastmilk.