Hot coffee is supposed to be hot, cold coffee is supposed to be cold, that's the deal — ask anybody. A prevailing myth about microwaves and microwaving coffee is that it causes cancer.
We're equal parts a passionate horde of amiable amateurs and the back room lounge of the coffee industry. Milk does not get burnt when microwaved, if the milk is still very fluid. Can you microwave styrofoam cups?
Coffee should never be reheated or microwaved.
Hence microwaves are used for application where changing the composition or structure is not needed (actually, infrared. Why does microwaved coffee taste so bad, and is there another solution? As more and more of us have been getting used to that being said, there's a little bit of science that might explain why microwaved coffee is frequently frowned upon.
Can you microwave styrofoam cups? Don't microwave styrofoam materials unless you see a sign that they can be microwaved.