Wine · Terminology

Maturation

The deliberate ageing of wine before bottling — in oak, steel, concrete or amphora.

Maturation — the French call it élevage, literally "raising" — is the period between the end of fermentation and bottling, during which the winemaker deliberately ages the wine. It can last weeks or years, and the choice of vessel is one of the biggest style decisions in wine.

Two things happen. Chemically, tannins polymerise and soften, colour stabilises, and controlled oxygen exposure builds complexity. Sensorially, the wine may pick up oak character — vanilla, clove, toast, coconut — and, if it stays on its lees, texture and bready depth.

In practice

  • Small oak barrels (225 L barrique, 228 L pièce): most oak flavour, most oxygen, most expensive.
  • Large oak (foudre, botte): oxygen without much oak flavour — the traditional choice in Piemonte and the Rhône.
  • Stainless steel: inert, no oxygen, no flavour — freshness preserved.
  • Concrete and amphora: micro-oxygenation and thermal stability without oak.
  • New oak gives more flavour than used; second- and third-fill barrels are workhorses.

Where you'll meet it

  • Every appellation with an ageing requirement: Riserva, Rioja's Crianza/Reserva/Gran Reserva, Brunello, Barolo.
  • The red and white winemaking guides.

Choosing a vessel

Vessel Oxygen Flavour added Typical use
New small oak High Strong — vanilla, toast, spice Premium reds, oaked Chardonnay
Used small oak Moderate Subtle Mid-tier reds and whites
Large old oak Low–moderate Almost none Nebbiolo, Rhône, traditional Rioja
Stainless steel Negligible None Aromatic whites, rosé, fresh reds
Concrete Low None Rhône, natural wine, texture-focused whites
Amphora / qvevri Moderate, porous Earthy, subtle Orange wine, Georgia, experimental

Maturation versus bottle ageing

  • Maturation happens in the winery, in bulk, with the winemaker intervening — racking, topping up, blending, adjusting sulfur.
  • Bottle ageing happens afterwards, in the absence of oxygen, and produces the reductive tertiary character of a mature bouquet.

The two are complementary, and appellation rules often specify both: Rioja Gran Reserva, for instance, demands minimum time in barrel and in bottle.

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