@LostInCalifornia @william @Flick Test Kitchen did a study and the best way to aerate wine is to pour it back and forth between a bottle (or whatever) and a measuring cup. Achieves the same mellowness in a few minutes.

(That said, I have a bottle of wine from 1986. I drank the first bottle on my sixty-fifth birthday and omigod it was so good! Never had wine that mellow and smooth.)