Frozen Fruit
Why would anyone microwave frozen fruit? Evidently, some people find that quickly zapping frozen fruit in the device is a simple way to defrost fruit they've neglected to remove from the freezer.
So what's wrong with this? Exposing fruit to carcinogens, doing so virtually removes many of the beneficial qualities and health advantages you would have obtained from it. Furthermore, eating such compelled-defrosted fruits later can weaken your immune system and result in disease. Your best option is to just let frozen fruit defrost in your refrigerator for many hours or even overnight before using it. But if you still want to reheat your microwave, the thing to be careful about is over-cooking, unless you’re thinking about making a warm fruit sauce to pour over ice cream, or filling for a pie, or a jam/compote/marmalade.