Which method is prohibited for heating formula or breast milk?

The prohibition of using a microwave for heating formula or breast milk is based on the potential safety risks it introduces. Microwaves can heat liquids unevenly, which can create hot spots that may scald a baby's mouth or throat when consumed. This unpredictable distribution of heat means that while some parts of the formula or milk might reach safe temperatures, others could remain dangerously hot.

In addition to the risk of burns, microwaving can also alter the nutritional properties of the milk or formula, potentially destroying essential nutrients. For these reasons, child care regulations prioritize safety and recommend alternative methods that provide even heating without the risks associated with microwave use.

Methods like stovetop heating, hot water baths, or warm towel wraps, while requiring more attention, are considered safer because they allow for better temperature control and reduce the risk of overheating.