06 · Serve Enthusiast

Decanting explained

Decanting does two distinct things: separates sediment from aged wines, and exposes young wines to air so they open up. Knowing which applies to your bottle — and for how long — is what this guide covers.

Three reasons to decant

1 Aeration (opening up)

Young, structured red wines — particularly those with high tannin and dense fruit — can taste closed, astringent or hard straight from the bottle. Exposing the wine to air allows oxidation to begin: harsh tannins soften slightly, aromatic compounds develop, and the wine opens up. Decanting achieves in 30–60 minutes what hours in a glass cannot.

Applies to: Young Barolo, Bordeaux, Hermitage, Napa Cabernet Sauvignon

2 Sediment separation

Older red wines form a natural sediment as tannins polymerise and bind with colour pigments over time. This sediment is harmless but bitter and unpleasant in the glass. Decanting separates the clear wine from the deposit by pouring slowly over a light source and stopping when sediment reaches the neck.

Applies to: Aged Bordeaux, Vintage Port, old Rhône, any wine over 10–15 years old

3 Temperature adjustment

If a wine has been stored or chilled slightly below ideal serving temperature, transferring it to a room-temperature decanter allows the wine to warm gently and evenly. This is more controlled than cupping the bottle in warm hands.

Applies to: Cellar-temperature reds (below 16 °C) that need bringing up before serving

How to decant for sediment

Stand the bottle upright for at least 24 hours before decanting — this allows sediment to fall to the bottom. When ready: place a light source (a candle or torch) beneath the neck of the bottle. Pour slowly and steadily in a continuous stream, watching through the glass as the wine passes over the light. When you see the sediment approaching the neck — a dark, cloudy mass — stop pouring. The small amount left in the bottle with the sediment is the sacrifice.

For wines that have been stored on their side for years, the sediment may cling to the side of the bottle. Stand these upright for 48–72 hours before decanting. If the sediment has not settled fully, decanting through a clean, unbleached coffee filter will catch any remaining particles without affecting flavour.

How to decant for aeration

For aeration rather than sediment, there is no need for a light source. Pour the wine into the decanter in a single continuous stream, allowing it to splash and tumble — this maximises contact with air. A wide-based decanter is ideal. Swirling the decanter periodically accelerates the process. Some wine professionals also use a wine aerator — a device that forces air through the wine as it is poured — which can achieve in seconds what a decanter takes an hour to do. For serving temperatures and when to open the bottle before a meal, see the serving wine step by step guide.

Wine type Decant? Duration

Young tannic red (under 5 years) Yes 45–90 min

Full-bodied red (5–15 years) Yes 30–60 min

Old red with sediment (15+ years) Yes 15–30 min

Vintage Port Yes 1–2 hrs (sediment)

Full-bodied white (oaked Chardonnay, aged) Sometimes 15–20 min

Light, aromatic white or rosé No —

Sparkling wine / Champagne No —

Decanting meaning, timing and aeration

Decanting — the practice of pouring wine from its bottle into a separate vessel — serves two distinct purposes. The decanting meaning in everyday use refers primarily to aeration: exposing wine to air so it "opens up," releasing aromatic compounds and softening tannin structure. For young, structured red wines, decanting is one of the most effective ways to improve the immediate drinking experience. A wine decanting time chart (see the table above) provides general guidance, but tasting the wine every 15-20 minutes after decanting is the best way to find the sweet spot for any specific bottle.

How to aerate wine is a common question with a simple answer: pour it into any wide-based glass vessel and wait. The broader the surface area, the faster the aeration. A purpose-built decanter works well, but a clean glass jug achieves the same result. Wine aerator devices — small gadgets that force air through the wine as it is poured — offer a shortcut, achieving in seconds what a traditional decant takes 30-60 minutes to accomplish. The WSET and GuildSomm service curricula both cover decanting technique in detail, and Jancis Robinson publishes practical decanting guidance by wine type. Decanter magazine — named after the vessel itself — regularly reviews decanting equipment and technique.

Sources: WSET (service and tasting curricula); Jancis Robinson MW — Oxford Companion to Wine; Court of Master Sommeliers (decanting technique standards); Decanter (wine service guidance). Last updated: 2026-10-15. Corrections via the contact form.

Questions

About decanting wine.

How long should you decant a wine for?

It depends on the wine. Young, tannic red wines benefit from 45–90 minutes of decanting — sometimes longer for very tight wines like young Barolo or Hermitage. Older wines (over 15 years) need far less: 15–30 minutes at most, as they are more fragile and prolonged air exposure can strip their delicate aromas. Sparkling wine and most white wines should not be decanted at all — the goal is to preserve their freshness and carbonation. If in doubt, taste the wine shortly after decanting and periodically until it shows its best. See the serving guide for temperature and timing for different wine styles.

Should white wine ever be decanted?

Occasionally. Very full-bodied, oaked whites — aged white Burgundy, white Hermitage, aged Viognier — can benefit from 15–20 minutes in a decanter to open up. Some old white wines also throw a light crystalline sediment (tartrate crystals) that benefits from separation, though tartrate crystals are harmless. Avoid decanting fresh, aromatic whites (Sauvignon Blanc, Riesling, Pinot Grigio) as the aeration can flatten their primary fruit and floral character.

What is the difference between decanting and double-decanting?

Double-decanting means pouring the wine from the bottle into a decanter (to separate sediment and aerate), then rinsing the original bottle and pouring the wine back into it for serving. This is used when presentation matters — serving wine from its original bottle at the table looks more elegant than a decanter. The wine gets the aeration benefit while still being poured from the bottle.

Does Champagne or sparkling wine need decanting?

No — decanting sparkling wine rapidly loses its carbonation and defeats the purpose. Champagne and sparkling wine are meant to be poured directly from the bottle into a glass. The only exception is if a large-format aged vintage Champagne has thrown significant sediment (rare), in which case a very gentle, short decant into a clean bottle (not a wide decanter) might be used.

Do I need an expensive decanter?

No. A clean glass jug works perfectly well for aeration. For sediment separation, any vessel that allows you to see the wine clearly while pouring works. The shape of the decanter does affect aeration speed: wide-bottomed decanters with large surface area aerate faster than tall, narrow ones. For most purposes, any clean glass vessel with a wide base is sufficient. See the glass guide for what matters in serving vessels.

What is a wine decanter and what is it used for?

A wine decanter is a glass vessel — typically wide-based with a narrow neck — used to hold wine that has been poured from its bottle. It serves two purposes: separating sediment from aged wines, and aerating young wines to open up their aromas and soften tannins. Standard shapes include: the standard decanter (medium bowl, suitable for most reds), the duck decanter or Magnum decanter (very wide base, maximum aeration for young tannic wines), and the ship's decanter (flat-based, stable on tables). Any clean glass jug achieves the same result for everyday use.

Does decanting wine actually make it taste better?

For the right wines, yes — demonstrably so. Young tannic reds (Barolo, Hermitage, Napa Cabernet under 5 years old) often taste significantly better after 45–90 minutes of decanting: tannins soften, aromatics open up and the fruit becomes more expressive. The effect is equivalent to what would happen over an hour in the glass but accelerated. For mature wines (over 15 years), decanting for sediment separation is the purpose rather than aeration — they are fragile and too much air can strip their delicate tertiary aromas. White wine, rosé and sparkling wine are rarely improved by decanting.

What is a typical wine decanting time chart?

A wine decanting time chart provides recommended aeration durations by wine type. Young tannic red wines (under 5 years old — Barolo, Cabernet Sauvignon, Hermitage): 45-90 minutes. Full-bodied reds aged 5-15 years: 30-60 minutes. Old red wines with sediment (15+ years): 15-30 minutes (for sediment separation, not extended aeration). Vintage Port: 1-2 hours. Full-bodied oaked white wine (Chardonnay, white Burgundy): 15-20 minutes if the wine seems closed. Light, aromatic whites, rosé and sparkling wine: do not decant. These are guidelines rather than fixed rules — taste the wine periodically after decanting and serve when it shows its best. Over-decanting a fragile old wine can strip its delicate tertiary aromas. Under-decanting a tight young Barolo means missing the improvement aeration brings. The serving wine step by step guide covers the full service sequence including when to start decanting relative to your meal.

What is the difference between decanting wine and using a wine aerator?

A wine aerator (a device that forces air through wine as it is poured into a glass) achieves the same goal as decanting — increased oxygen contact — but far more rapidly: seconds rather than 45–90 minutes. Aerators work well for young, simple red wines that need quick opening. However, they do not separate sediment (a key function of decanting for aged reds), and the rapid, forced aeration is not ideal for complex, delicate wines. For a bottle of 10-year-old Burgundy with sediment, a gentle decant is still the right approach. For an everyday Rioja Crianza at dinner, an aerator is a practical shortcut.