The simple act of pouring wine and allowing it some “air time” actually improves the taste. But, how long should you wait? And does wine go bad if decanted too long?
Here are some tips and tricks for decanting different types of wines.
Nearly all red wines benefit from decanting. There are two primary processes involved (oxidation and evaporation) that ultimately make red wines taste fruitier and smoother following decantation.
At around 15–20 minutes, the reductive traits in red wines blow off. Reduction smells kind of like rotten eggs, old lunch meat, burnt rubber, or even hot farts! It’s pretty common in red wines, and happens when aromatic compounds manifest in an anaerobic environment (e.g. inside the bottle).
At around 30–45 minutes, the “burning” or “sharp” aromas in red wines are less detectable. You might think these burning smells are from alcohol, but more than likely, it’s volatile acidity (VA). Of course, every room and every taster senses VA a bit differently, so be sure to give your wines a sniff.
At around 60 minutes, tannins start to mellow out. Longer decanting times are usually reserved for bold red wines with very astringent-tasting tannins. While there isn’t a lot of science to back up this observation, some suspect that the increase of aromatic compounds might reduce our perception of tannins.
As long as you’re drinking your wines within a few of hours of being decanted you should be fine. Of course, there are a few special exceptions:
Up to 30 minutes if the wine shows signs of reduction.
Most white and rosé wines don’t need to be decanted. In fact, some aromatic compounds, like the passion fruit flavour in Sauvignon Blanc, waft away! So, the only reason you might want to decant a white or a rosé wine is if it’s “reduced.”
Reduction in white wine sometimes smells like burnt match, but most of the time it just lacks aromas. If you smell only “mineral-like” flavours and very few fruit smells, your white might have some reduction. No big deal!
In most cases, pouring the wine into a glass and waiting about 15 minutes fixes the issue. You should smell a lot more fruit aromas after you wait!
There are a few rare cases when you can decant sparkling wines. We’re talking rare!
Some sparkling wines have reduction (burnt match smell) and improve with decanting. Generally speaking, a sparkling wine decanter has much less surface area and is “amphora” shaped in order to preserve bubble finesse.
There are a few other fun scenarios when you can use your decanter.