When water is placed in the refrigerator, it'll solidifies especially when its too cold, like when one puts it in the freezer. But if placed at room temperature, or in a humid or hot place, then nothing happens to it. Here in the orient, we are used to drinking cold water after meals because it's really hot and drinking hot water, not coffee or chocolate, will only add up to the warmness of the place. Besides, the food inside our tummies will not solidify with the oil or something that we took in because the whole place is already hot. I mean I've seen VCO solidify in cold store malls but once I take it out, it melts back into liquid state and stays the same at home. So I don't see anything wrong with drinking cold water after every meal or whenever in hot or humid climates. It refreshes us actually and eases our sufferings from the hot weather.