In her message to Lactnet, Helen said:
"Aside from mentioning the "hot spot" factor, the
Breastfeeding Answer BOok summarizes that human milk should not be heated in
a microwave, "as valuable components of the milk will be destroyed if it is
heated over 130 degrees F." If the milk is only heated to room temp
however, would the same loss of nutrients and properties occur?"


When microwaves heat, they heat unevenly.  So even though the milk is only
warmed to room temp, some "hot spots" may heat much higher, while some stay
much cooler.  When the bottle is shaken, they all mix to room temperature,
although some hot spots may reform for a while, even after removal from the
microwave oven.

Barb Berges BS, RN, IBCLC
Rochester, New York

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