I’m with Benedict regarding the microwave & red wine. 30/40 secs, bottle on it’s side with cork in but foil removed. Then stand it up for half hour or so on kitchen worktop to even out warm spots. Obviously not for anything with a sediment.
Decanter: I use TWS decanter (which seems to have vanished from website) it’s great, and fits in the dishwasher. Because it’s not all posh I can use it all the time.
I decant all reds into a jug,leave for a bit,then back in the bottle. I find this works for me. I should perhaps point out that the wine I buy is usually at the cheaper end of the market and usually New World.
Firstly, not all wine is ageworthy or has the structural makeup to age.
Secondly, ageing wine in the cellar and decanting are two completely different things.
Ageing can be done in vessels before bottling and the wine will extract flavour compounds to add to the complexity of the wine should the winemaker decide to age in barrel, new or old.
If the wine is bottle maturing in a cellar than the wine is integrating the aroma compounds, tannins and acidity. This can take some time to develop.
Decanting allows oxygen to bind with chemical compounds in the wine opening it up as such and helping tannins to appear smoother and more integrated with the rest of the wine. So particularly useful in younger wines. It also allows any SO2 to dissipate and/or any other gasses which may have been used prior to bottling.
Personally I wouldn’t decant lighter fruit driven wines, given the majority of these wines are made without the addition of oxygen but with SO2 to preserve these flavours and aromas. Decanting will only serve to do the opposite and remove them. IMHO, I wouldn’t decant a fruity SB but I would an already Oxidised Vina Gravonia Tondonia or full bodied white
It’s obviously personal preference (which might be psychological) but even with lighter/ leaner whites I find oxygen adds a rounder/fuller quality to the taste. This may be only slight. Sometimes there is a harsh attack - which some people might call refreshing - that disappears with a bit of air exposure. this might be only ten or fifteen minutes decanting.
If wine’s a ‘living thing’ then it needs to stretch itself after its cramped confinement before being drunk. I know that sounds like old-fashioned wine writing probably eschewed by the WSET’s more objective approach but there’s room for many views.
Potentially fragile wines I’m more cautious with (I’ve some '85 red Burgundy) and then it might be only a 30 mins decant.