Wine ageing often begins long before the bottle reaches a cellar.
After fermentation, wine can spend several months in barrels, foudres, stainless steel tanks, concrete or amphorae before bottling.
This élevage phase directly influences aromas, texture, tannins, freshness and ageing potential.
Each method has its own effects.
What is the difference between élevage and ageing?
Élevage generally refers to the period after fermentation and before bottling.
Ageing refers more broadly to the wine's evolution over time.
During élevage, the winemaker can still intervene.
Once in bottle, the wine evolves more slowly with very little exchange with the outside.
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Barrel ageing
The barrel is one of the best-known vessels.
It is generally made of oak.
The wood allows slow micro-oxygenation that can help soften tannins and round out the texture.
It can also bring aromas of vanilla, spice, cocoa, smoke, toast or hazelnut.
The role of the oak barrel
The influence of the wood depends on several factors.
A new barrel generally marks the wine more than a used one.
The toasting of the wood also affects the aromas.
The length of ageing also matters.
The aim is not always to give an oaky taste, but often to bring structure, roundness and complexity.
Ageing in foudres
A foudre is a large wooden vessel.
Because its volume is much greater than a barrel's, the contact between wine and wood is proportionally smaller.
The result is often more discreet.
The wine benefits from light oxygenation while keeping more of its fruit and terroir expression.
Stainless steel tanks
Stainless steel is an almost completely neutral vessel.
It brings no aromas to the wine.
It also limits exchanges with oxygen.
This method therefore preserves freshness, fruit aromas and the purity of the grape.
It is widely used for white wines, rosés and some fruity reds.
Why does stainless steel preserve fruit so well?
Stainless steel allows good temperature control.
It also protects the wine from oxidising too quickly.
Citrus, fresh fruit or floral aromas therefore often remain very present.
The result is generally cleaner and more direct.
Concrete tanks
Concrete tanks offer an interesting compromise.
They do not bring oaky notes like a barrel, but they can allow very slight exchanges with oxygen.
The wine can thus gain texture without losing its aromatic identity.
Concrete also has good thermal inertia.
Egg-shaped tanks
Some concrete tanks are egg-shaped.
This shape encourages natural movement of the wine.
The lees can stay more in suspension.
This can bring volume, roundness and complexity.
Amphora ageing
The amphora is an ancient method making a strong comeback on estates.
It can be made of terracotta or stoneware.
Unlike wood, it does not pass on vanilla or toasty aromas.
It is often used to preserve the purity of the fruit and the expression of the terroir.
Terracotta or stoneware
Terracotta is generally slightly porous.
It allows gradual oxygenation.
Stoneware is often more neutral and less permeable.
The choice therefore depends on the desired style.
In both cases, the aim is often to let the grape speak more.
Ageing on the lees
Lees are the natural deposits left by yeasts after fermentation.
Wine can remain in contact with them for several months.
This can bring more roundness, texture and complexity.
It is particularly common for some white wines.
Bâtonnage
Bâtonnage means stirring the lees back into suspension.
This technique can increase volume and richness on the palate.
It must, however, be carefully managed.
Too much bâtonnage can change the wine's style excessively.
The role of oxygen
Oxygen plays an essential role during élevage.
In small amounts, it can help tannins evolve and add aromatic complexity.
In large amounts, it can cause excessive oxidation.
The choice of vessel therefore partly controls this evolution.
Bottle ageing
After bottling, the wine continues to evolve.
Tannins can become softer.
Fruit aromas can give way to more complex notes.
These are often called tertiary aromas.
Depending on the wine, they can recall undergrowth, leather, tobacco, honey, dried fruit or hazelnut.
Can all wines age?
No.
Ageing potential depends on many criteria.
Acidity, tannins, grape variety, vintage, concentration and élevage method all play a role.
Some wines are designed to be drunk young.
Others can evolve for several years, or even several decades.
Mixed élevage
Many winemakers use several vessels.
Part of the wine can be aged in barrel and another part in stainless steel or concrete.
The different lots are then blended.
This combines several qualities: complexity, freshness, texture and fruit.
Which ageing method to choose?
There is no universally better method.
Barrels can bring structure and complexity.
Foudres allow more discreet evolution.
Stainless steel preserves freshness.
Concrete works on texture.
Amphorae often preserve aromatic purity.
The best choice depends on the grape, the terroir and the desired style.
Understanding ageing to better understand wine
Wine ageing is therefore the result of several choices.
Barrel, foudre, stainless steel, concrete, amphora, lees ageing and bottle ageing each influence the final result differently.
These methods act on aromas, tannins, texture, freshness and complexity.
Understanding their role helps explain why a wine has a particular style and how it may evolve over time.
