When and why should a bottle be decanted?
Wine aeration: when and why should a bottle be decanted ?
Wine aeration is an elegant and technical service gesture. But between decant and decanter, between tannic young wines and delicate old vintages, it's sometimes hard to know what's really useful... and what can be risky. Here's a clear point to understand when, why and how to aerate a wine, and distinguish between practices adapted to each situation.
1. Aeration, decanting, decanting: what exactly are we talking about ?
- Ventilate a wine: exposing it to oxygen so that it opens up, relaxes and reveals more aromas.
- Carafer a wine: this means decanting it into a wide-base decanter in order to accelerate oxygenation.
- Decanting a wine: it means pouring it slowly to separating wine from its deposit, often present in older vintages.
These three gestures may seem similar, but they have different very different purposes depending on the type of wine and its age.
2. Why aerate a wine ?
a. To "wake up" a young wine
Young, closed red wines, still tight in the mouth, can benefit from oxygenation. This allows :
- From relax tannins,
- D'open primary aromas (fruits, flowers, spices),
- From make the wine more expressive and balanced for tasting.
b. To correct certain reduction notes
Some wines (particularly natural, organic or low-sulfur wines) may present a reduction aroma (egg, match) on opening. Controlled oxygenation can often dissipate these odors.
c. To separate wine from sediment (old wines)
In the case of aged red wines, a natural deposit may form at the bottom of the bottle. Decanting leaves it at the bottom, while gently pouring the clear wine into another container.
3. Which wines need to be aerated... and which don't ?
|
Type of wine |
Recommendation |
Why ? |
|
Young tannic red (Bordeaux, Cahors, Madiran) |
Yes, decant 1h to 2h |
To round out tannins and develop aromas |
|
Light fruity red (Beaujolais, Pinot Noir) |
Yes, brief aeration (15-30 min) |
To reveal the fruit without weakening the finesse |
|
Expressive young white wine (Chardonnay, Viognier) |
Yes, sometimes |
Quick aeration or simple opening in advance |
|
Vintage wine (15 years +) |
Short settling with caution |
To separate the deposit without upsetting the balance |
|
Oxidative wines (yellow wine, rancio, Madeira) |
Not required |
Already in prolonged contact with oxygen during breeding |
|
Effervescents (champagne, crémant) |
Not recommended |
Aeration dissipates bubbles and unbalances the wine |
4. How to aerate or decant a wine ?
- Open the bottle in advance (30 min to 1h) may be sufficient for young or not very concentrated wines.
- For decanting :
- Choosing a decanter broad base,
- Transfer slowly to avoid thermal or mechanical shock,
- Do not exceed 2 to 3 hours to avoid premature oxidation.
- For a settling :
- Use a carafe with a narrower neck,
- Illuminate the bottle from below to monitor the deposit,
- Pour slowly, without splashing, leaving the deposit at the bottom.
Tip: always taste the wine before decanting, some wines, even when young, can be naturally open and balanced without the need for aeration.
5. Which accessories to use ?
- Decanter adapted to bottle size and wine style,
- Thermometer for monitoring operating temperature,
- Candle or lamp to locate deposits during settling,
- Possibly a funnel with filter to retain residues.
Conclusion
Decanting, decanting or aerating a wine should never be done systematically, but rather according to style, age and tasting context. Oxygen can enhance a young wine... or hasten the decline of an old one. With a little practice and the right accessories, you'll be able to bring out the full potential of your bottles, at the perfect time.