Reason one: air for a young wine
A young, powerful red can taste closed when you first open it: little smell, firm and drying tannin, sometimes a faint smell of struck match. Pouring it into a wide decanter spreads it out so much more of it meets the air. Within half an hour to two hours, the fruit comes forward, the tannin feels rounder and that closed smell blows away.
An open bottle on the table does almost nothing, because the air only touches the small circle of wine in the neck. That is why “letting it breathe” in the bottle rarely works, and a decanter does.
Reason two: sediment in an old wine
As a red wine ages, colour and tannin slowly drop out and form a dark, gritty deposit in the bottle. It is harmless, but it tastes bitter and feels sandy, and it clouds the glass. Decanting an old bottle slowly, with a light under the neck, leaves that sediment behind. Vintage Port and unfiltered wines throw sediment even when young.
01Young and powerful
Air opens the aromas and softens the tannin. Decant 30 minutes to 2 hours ahead.
02Old with sediment
Pour it off the deposit just before serving, gently and slowly.
03Light and fruity
Little to gain. Pour straight from the bottle into a good glass.
04Most whites and rosé
Usually no. A young, rich white such as white Burgundy can open in 15 to 30 minutes.
Does decanting really make a difference?
For the right wine, yes, and you can taste it yourself: pour one glass straight from the bottle, decant the rest, and compare the two after an hour. A young Cabernet Sauvignon or Barolo changes the most. A light Beaujolais or a simple Pinot Grigio changes very little, so decanting it is mostly theatre.
Which wines to decant
Which wines to decant
| Wine | Decant? | Why |
|---|---|---|
| Young Cabernet Sauvignon, Bordeaux blends | Yes | Air softens firm tannin |
| Young Nebbiolo: Barolo, Barbaresco | Yes | Air opens a famously closed wine |
| Young Syrah, Malbec, Brunello | Yes | Air brings the fruit forward |
| Red wine older than about 10 years | Yes, gently | To leave the sediment behind |
| Vintage Port | Yes | Heavy sediment, young or old |
| Pinot Noir, Gamay, light reds | Rarely | Delicate aromas, little tannin |
| Rich young whites: white Burgundy, white Rhône | Sometimes | Short air can open them |
| Crisp whites, rosé, most sparkling | No | Freshness is the point |
The downside of decanting
- An old wine can fade. After decades in the bottle, a fragile wine can lose its aroma within half an hour of meeting the air. Decant it just before you pour.
- Too long flattens any wine. Left for many hours, the fruit tires. Taste every 20 to 30 minutes.
- One more thing to wash. A decanter needs care. See how to clean a decanter.
Ready to try it? Start with how to decant wine, step by step, then how long each wine needs.
Why decant: your questions
Why do you decant wine?
To give a young wine air, which opens its aromas and softens firm tannin, and to separate an old wine from the sediment in the bottle.
Why is red wine decanted more than white?
Red wine has more tannin, which air softens, and older reds throw sediment. Most whites have neither, though a young, rich white such as white Burgundy can also open in a decanter.
Why do sommeliers decant over a candle?
The light under the bottle neck shows the sediment as it moves towards the opening, so you know exactly when to stop pouring. A small torch or a phone light does the same job.
Can decanting ruin a wine?
It can tire a very old, fragile wine if it waits too long in the decanter. Decant old wines just before serving, and taste a young wine every 20 to 30 minutes so it does not go past its best.
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