Quickly decant the old ones leaving sediment in bottle drink entire contents rather quickly.
Decant ones you put down for a few years (5-15) as need be (if your cellaring you know which ones), if sediment has stained bottle I use candle (aides in seeing and helps avoid sediment in neck) otherwise splash and drink or splash, breathe and drink.
New wines some need major time others none at all.
After reading my own answer
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