Sometimes a good party can distract anyone from the fact that they've got a bottle of wine sitting in the freezer. Although microwaving is an appropriate method of warming wine, it is not usually the best controlled. Although it does not necessarily ruin the wine, overheating can cause a change in flavor. For example, whereas the wine was originally fresh, vibrant and young tasting, overheated, it can have an earthy, more subtle flavor with less tannic. For an alternative method, run a decanter under hot water until the glass is warm to hot. Then, decant the wine from the bottle into the decanter. This should warm the wine sufficiently enough for it to be enjoyed. Another way wine can be warmed is by simply leaving in out in a few glasses and allowing the warmth of the room to help it warm up.