Concept
Foudre
Large wooden vat, 20-300 hectolitres. Used for reserve-wine ageing in Champagne, long-term storage in Burgundy. Known from Krug, Bollinger, Selosse.
What it is
Foudre (pronounced FOO-druh) is a large wooden vat with a capacity between 20 and 300 hectolitres (2,000-30,000 litres). Far larger than a sherry bota (500L) or a Burgundian barrique (225L). The size varies by region, but Champagne typically uses 50-80 hl per foudre.
The wood is usually French oak, sometimes Slavonian or Hungarian. Because of the large barrel size the ratio of wood surface to vat volume is smaller than in a barrique: less wood influence per litre, slower micro-oxidation. That makes foudres suited to long-term ageing of wines that should not turn “woody”.
Where foudres are used
Three main applications in and around Champagne:
- Reserve wine storage at large houses: Krug keeps reserve wine 12-15 years in foudres, sometimes longer. Delivers tertiary complexity without wood dominance.
- Second-stage ageing at certain growers: Selosse, Vouette et Sorbée deliberately use foudres for parts of their cuvées
- Roederer’s Réserve Perpétuelle: a continuous blend in foudres partially drawn and refilled each year
Outside Champagne, foudres are widely used in Burgundy (white wine ageing at top estates), Alsace (Pinot Gris, Riesling) and Germany (Riesling from large VDP producers).
Foudre versus barrique
| Aspect | Foudre | Barrique | |---|---|---| | Volume | 20-300 hl | 2.25 hl (225L) | | Wood/wine ratio | Low | High | | Wood influence | Subtle | Direct | | Ageing duration | 5-30+ years | 6-24 months | | Flavour addition | Micro-oxidation | Direct vanilla/toast | | Investment cost | High (£18,000-£55,000 per foudre) | Low (£700-£1,300 per barrique) | | Lifespan | 50-100+ years | 5-10 years effective |
Higher cost and long lifespan make foudres attractive to producers planning across generations. For pure tank equivalence stainless steel is cheaper, but foudres provide something tanks cannot: slow micro-oxidation without aggressive wood character.
Notable foudre users in Champagne
| House | Foudre usage | Share of production | |---|---|---| | Krug | Reserve wine across 12-15 vintages | ~30-40% of Grande Cuvée | | Bollinger | Reserve wine for R.D. and La Grande Année | ~5-10% of Special Cuvée | | Roederer | Réserve Perpétuelle system | ~47% of Collection | | Selosse | Substance cuvée 100% foudre-aged | 100% of that cuvée | | Vouette et Sorbée | Solera foudre as reserve wine | ~30-40% of blends | | Larmandier-Bernier | Vieille Vigne du Levant component | ~20% |
Not every top producer uses foudres. Many houses choose climate-controlled stainless tanks, which is cheaper and delivers more consistent results. Choosing foudre is always also a statement: time, oxidation, tradition over cost efficiency.
Frequently asked questions
What’s the difference between foudre and barrique?
Size mostly. Foudre = 20-300 hl large vat with subtle wood influence. Barrique = 225L cask with direct wood influence. Foudres are used for long-term storage without wood dominance, barriques for shorter ageing with noticeable vanilla/toast.
How long does a foudre last?
50-100+ years if well maintained. Selosse uses foudres from the 1950s; Krug keeps a few from the 19th century. Oak doesn’t dry out and remains technically usable as long as the hoops stay intact. Periodic cleaning and seasoning keep the flavour-contribution role under control.
Can I taste foudre-aged Champagne?
Yes. Krug Grande Cuvée clearly shows foudre influence: broader mouthfeel, spice, subtle vanilla. Selosse Substance is a more extreme example with oxidative sherry tones. Roederer Collection 244+ has noticeable Réserve Perpétuelle character.