You might have an opened bottle of wine from a recent celebration and wonder, “Is this still good?” Wine that’s been open for too long may not make you sick — but it won’t taste the way it was intended, according to the “Wine Country” blog. Leaving wine open for too long can strip its brightness, dull its aromas and mute its flavors, experts say. In the worst cases, opened wine can develop a sour, vinegary taste. What’s a…