Champagne Glossary

The art of blending multiple base wines — from different grape varieties, villages, and vintages — to create a unified cuvée. For large houses, assemblage is the core skill: a chef de cave might taste 400 separate lots and draw from a decade of reserve wines to produce a consistent non-vintage style. For growers, it often means blending a handful of parcels from a single estate. The French word simply means "assembly."

The gradual breakdown of spent yeast cells (lees) after secondary fermentation. As the yeast walls disintegrate, they release polysaccharides and proteins into the wine — creating the characteristic creamy texture, bread dough, brioche, and toasty character found in aged Champagne. The longer the wine ages sur lattes, the more pronounced the autolytic character. Minimum legal aging for non-vintage Champagne is 15 months; most quality producers go well beyond.

Champagne made exclusively from white grapes — in practice, almost always Chardonnay. Tends to be leaner, more mineral, and citrus-driven than blended styles. The Côte des Blancs — a ridge south of Épernay with chalky, east-facing slopes — is the heartland. Classic expressions: Pierre Moncuit, Salon, Billecart-Salmon Blanc de Blancs. See our guide to reading a champagne label to spot it.

Champagne made exclusively from red-skinned grapes — Pinot Noir, Pinot Meunier, or both — with white juice. The skins are removed quickly after pressing to avoid color extraction. Blanc de Noirs tends to be more full-bodied, vinous, and red-fruit forward than Blanc de Blancs. Bollinger's Vieilles Vignes Françaises is the most celebrated example.

The most common sweetness classification for Champagne, covering wines with 0–12 g/L of residual sugar. The range is wide — a wine at 2 g/L and one at 11 g/L are both legally Brut, but they taste completely different. Not very sweet, but rounded enough for broad appeal. The house NV from most major producers sits here. For a full breakdown of where Brut fits in the sweetness spectrum, see our guide to champagne sweetness levels.

The driest sweetness classification, with 0–3 g/L residual sugar. No sugar is added after dégorgement (also called Zero Dosage or Brut Zéro). Stark, mineral, and uncompromising — Brut Nature shows every virtue and every flaw of the base wine without sugar's softening influence. Favored by growers who want terroir to speak directly. See what dosage means and why it matters.

The cellar master — the person responsible for blending, aging, and defining the style of a Champagne house. At a large négociant, this is the most important creative role: they taste hundreds of base wine lots, decide on assemblage, set dosage, and guard the reserve wine library. Notable chefs de cave include Didier Mariotti at Moët & Chandon and Jean-Baptiste Lécaillon at Louis Roederer. At small grower estates, the vigneron typically plays all roles.

A walled vineyard — historically a monastic term (think Clos de Vougeot in Burgundy). In Champagne, a Clos designates a small, enclosed plot usually made into a single-site wine. Examples: Krug's Clos du Mesnil (100% Chardonnay from a walled Grand Cru parcel in Le Mesnil-sur-Oger) and Bollinger's Vieilles Vignes Françaises (pre-phylloxera Pinot Noir vines in Aÿ).

A two-letter producer code indicating a cooperative. Grower members pool their grapes, which are vinified collectively and sold under the co-op's label. Cooperatives often produce good-value Champagne with consistent quality — Nicolas Feuillatte is the largest example. The CM code appears on every Champagne back label. See our full guide to reading a champagne label.

Village classification. Champagne uses a system called the Échelle des Crus ("ladder of growths") in which each of the 319 villages is rated. There are 17 Grand Cru villages (historically rated 100%) and 42 Premier Cru villages (90–99%). Wines made from grapes sourced exclusively from Grand Cru or Premier Cru villages can carry that designation on the label. See how to read a champagne label for more.

A word with three distinct meanings in Champagne: (1) The first and most prized free-run pressing of Champagne grapes — 2,050 liters per 4,000 kg of grapes. Higher-quality producers use only the cuvée. (2) Any specific blend or batch of Champagne. (3) As in "Prestige Cuvée," a producer's top wine. From the French for "vat" — the vessel in which grapes were originally fermented.

The step in Champagne production where accumulated yeast sediment is expelled from the bottle. After riddling, bottles are inverted and the neck is briefly frozen; the crown cap is removed, and the frozen plug of yeast shoots out under pressure. The bottle is then topped up with dosage and sealed with a cork. Dégorgement date is increasingly printed on back labels — a signal of how long the wine has rested post-disgorgement before reaching you.

A sweetness classification with 32–50 g/L residual sugar. Noticeably sweet — this is dessert-adjacent territory. Demi-Sec pairs beautifully with fruit-based pastries, crème brûlée, and mild blue cheeses. It's a historical style that dominated 19th-century Champagne production (Victorian tastes ran sweeter) and is making a quiet comeback. See champagne sweetness levels explained.

The small amount of sugar solution — called liqueur d'expédition — added to Champagne after dégorgement. The dosage tops up the bottle and determines the wine's sweetness classification: from Brut Nature (zero sugar) to Doux (very sweet). It's one of the producer's most consequential finishing decisions, and it explains a lot about why grower Champagnes often taste so different from large-house wines. Read the full dosage explainer →

The sweetest legally defined Champagne classification, with 50+ g/L residual sugar. From the French for "sweet." A historical style that was the norm in 19th-century Champagne — Russian aristocracy preferred very sweet wines. Extremely rare today; a curiosity rather than a mainstream style. See champagne sweetness levels.

A very dry style with 0–6 g/L residual sugar. Lean, precise, and textural — Extra Brut signals the producer's intention to show the wine's natural acidity and minerality without sugar softening the edges. Favored by many grower producers and increasingly popular with drinkers who want a more austere style. See champagne sweetness levels and what dosage means.

Confusingly named — Extra Dry is actually sweeter than Brut, with 12–17 g/L residual sugar. The label confusion comes from historical naming conventions. Extra Dry is the dominant style for Prosecco and works well as an aperitif. It tastes off-dry — a gentle sweetness that doesn't dominate. See the full comparison in Champagne vs Prosecco.

Designation for grapes sourced exclusively from one of the 17 highest-rated villages in Champagne. The Grand Cru villages include Aÿ, Ambonnay, Avize, Bouzy, Cramant, Le Mesnil-sur-Oger, Verzenay, and Oger — among others. "Grand Cru" on a label is a quality indicator, though a talented producer working Premier Cru or village fruit can easily outperform a mediocre Grand Cru. See how to read a champagne label.

Champagne made by a producer who grows their own grapes on their own vineyards and makes the wine themselves. Marked with the code RM (Récoltant-Manipulant) on the label. Grower Champagne tends to express terroir more directly than large-house wines because it comes from a single estate rather than a blend of dozens of villages. Often lower dosage, less production, more personality. Full guide to grower champagne →

The spent yeast cells that remain in the bottle after secondary fermentation. Champagne aging "on the lees" (sur lattes) allows autolysis to develop richness, creaminess, and complexity. Legal minimums: 15 months for non-vintage, 36 months for vintage. Quality producers typically go much further — growers often release wines after 36–48 months on lees even for NV.

The sugar solution added at dégorgement that determines a Champagne's sweetness classification. Typically a mixture of still wine and cane sugar, though the exact formulation is a closely guarded house secret — the quality of the expedition liqueur materially affects the finished wine. Higher-quality producers use aged reserve wines in their liqueur d'expédition for additional complexity. The term "dosage" is often used interchangeably with this. Read the full dosage explainer →

The mixture of sugar, yeast, and clarifying agents added to a still base wine before bottling to trigger secondary fermentation in the bottle. This is the step that creates Champagne's bubbles — the yeast eats the sugar and produces both carbon dioxide (trapped as bubbles) and the lees that later contribute complexity. The process is called "mise en tirage" — the bottling for fermentation.

A 1.5-liter bottle — the equivalent of two standard bottles. Champagne ages slower and more gracefully in magnums because the ratio of wine to oxygen is more favorable: less oxygen relative to more wine means a slower, more controlled oxidative process. Many collectors prefer to age prestige cuvées in magnum. Other formats include Jeroboam (3L), Methuselah (6L), and Balthazar (12L).

A secondary biological process where sharp malic acid (think green apple) is converted into softer lactic acid (think butter, cream) by naturally occurring bacteria. In Champagne, MLF softens the region's high natural acidity and adds creamy, rounded texture. Large houses typically encourage full MLF for consistency and roundness; many growers block it partially or entirely to preserve freshness, tension, and site character.

The production method that defines Champagne: secondary fermentation happens inside the individual bottle, creating bubbles via trapped carbon dioxide. The wine then ages on its lees inside that same bottle. This is in contrast to the tank method (Charmat process), where secondary fermentation happens in a pressurized vat. Méthode champenoise creates finer, more persistent bubbles and greater complexity. The same method is used for quality Cava, Crémant, and traditional-method Prosecco. How Champagne and Prosecco differ →

Champagne made from a single declared harvest year. Producers declare a vintage only in exceptional years — roughly 3–5 times per decade. Vintage Champagne must age at least 36 months on lees (versus 15 for NV) and is typically a more age-worthy, structured wine. The opposite of Non-Vintage (NV). Exceptional recent vintages include 2008, 2012, and 2015.

The bubbles in a glass of Champagne — specifically their texture, size, persistence, and finesse. A coarse, aggressive mousse (large, fast-rising bubbles that disappear quickly) suggests lower quality or poor serving temperature. Fine, persistent, effervescent bubbles — described as a "cordon de mousse" when they form a ring at the glass's edge — indicate quality secondary fermentation, proper aging, and the right glass and temperature.

A producer who buys grapes, juice, or base wines from other growers and vinifies under their own label. The model used by most large Champagne houses — LVMH (Moët, Veuve Clicquot, Krug), Bollinger, Louis Roederer, Billecart-Salmon. Not a negative designation: some of the finest Champagnes in the world come from NMs. The distinction matters because NMs have less direct control over viticulture than growers. See grower champagne explained.

Champagne blended from multiple harvest years to achieve a consistent, non-year-specific style. The majority of all Champagne production is NV. The house's assemblage skills are on full display: a great NV blends current harvest with reserve wines from previous years to maintain house character regardless of vintage variation. Minimum 15 months aging on lees required; quality producers typically exceed this. See how to read a champagne label.

Designation for wines using grapes exclusively from one of Champagne's 42 Premier Cru villages, historically rated 90–99% in the Échelle des Crus. A step below Grand Cru in prestige, but top Premier Cru villages like Cumières, Tauxières, and Vertus produce excellent fruit. Premier Cru on a label is a meaningful quality signal. See how to read a champagne label.

A producer's flagship wine — the top of the range, also called Tête de Cuvée. Usually vintage-dated, aged longer, sourced from the producer's best vineyard sites, and packaged accordingly. Famous examples: Dom Pérignon (Moët & Chandon), Cristal (Louis Roederer), La Grande Dame (Veuve Clicquot), Cuvée Sir Winston Churchill (Pol Roger). Generally commands a significant price premium over house NV.

"Recently Disgorged." A late-disgorgement style where bottles age for unusually long periods on lees — often a decade or more — before disgorgement and release. The wine retains maximum freshness and complexity from extended lees contact, then releases with the vitality of a newly disgorged wine. Pioneered by Madame Bollinger in the 1960s. Bollinger's RD release remains the benchmark.

The producer code for a grower champagne: someone who grows their own grapes AND makes their own wine. The clearest signal of a grower producer. RM wines tend to express terroir more directly, often carry lower dosage, and offer better value relative to prestige house wines. The two-letter code appears on every Champagne back label next to a registration number. Full guide to why RM changes everything →

The process of gradually rotating bottles to consolidate yeast sediment in the bottle neck before dégorgement. Bottles begin horizontal and are incrementally tilted and rotated over several weeks until fully inverted, with all sediment resting against the crown cap. Traditionally done by hand on pupitres (hinged wooden boards) — a skilled riddler could turn 50,000 bottles per day. Today, most producers use gyropalettes: metal cages that automate the process in 48–72 hours. See how champagne is made.

Champagne with a pink hue and typically red-fruit character. Made by one of two methods: (1) assemblage — adding a small amount of still red wine (usually Pinot Noir) to the base white wine before tirage; (2) saignée — brief skin contact during pressing to extract color directly. Rosé Champagne ranges from pale salmon (barely pink) to deep copper. Most Rosé Champagne uses the assemblage method; saignée is rarer and tends to produce more structured, intensely colored wines.

The theatrical act of opening a Champagne bottle by running a saber (or heavy knife) along the seam of the bottle to break off the neck cleanly. The technique works because of the bottle's internal pressure — the CO₂ pushes the glass collar off in a single clean break. Attributed to Napoleon's cavalry, who reportedly couldn't be bothered to dismount. Impressive at parties. Not recommended with your grandmother's crystal glasses or anything served at full temperature.

"Dry" in French — but in Champagne, Sec contains 17–32 g/L residual sugar and tastes noticeably sweet. Another historical naming confusion. Sec sits between Extra Dry and Demi-Sec on the sweetness scale. Rarely seen in quality Champagne today; occasionally found in older-style house cuvées. See champagne sweetness levels explained.

French for "on laths" — the position bottles rest during lees aging, stacked horizontally on wooden slats in Champagne cellars. Champagne spends its lees-aging period sur lattes, developing autolytic character while the secondary fermentation gases integrate into the wine. The millions of bottles stacked in Champagne's chalk caves are all aging sur lattes.

The complete growing environment of a vineyard: soil composition, subsoil, slope, aspect, microclimate, altitude, and drainage. In Champagne, chalk is the defining terroir feature — it drains well, retains heat, reflects light, and forces vine roots deep in search of water, creating the region's characteristic tension and minerality. Grower Champagne is an argument for terroir: that a specific place, properly expressed, makes a more interesting wine than any blend. Why terroir matters for grower champagne →

Synonymous with Prestige Cuvée — the producer's top wine. From the French for "head of the batch," referencing the finest first pressing of grapes. At large houses, the tête de cuvée is typically a vintage wine from the best parcels, aged significantly longer than standard releases. At grower estates, it's often a single-vineyard wine from the estate's most prized plot.

The bottling step in which liqueur de tirage (sugar + yeast + clarifying agents) is added to still base wine to trigger secondary fermentation inside the bottle. "Mise en tirage" means the bottling date. From the French for "drawing" or "pulling" — as in drawing wine from a tank into a bottle. The tirage date tells you when the clock started on lees aging.

See Millésimé. A vintage Champagne is made from a single declared harvest year. The decision to declare a vintage is the producer's alone — there's no appellation authority mandating it. Most houses declare in exceptional years only; growers sometimes release vintage wines more frequently from standout single-parcel harvests.

Synonymous with Brut Nature — no sugar added after dégorgement. The finished wine has 0–3 g/L residual sugar (sometimes literally zero). A wine made this way either stands on its own — showing terroir, vintage, and winemaking without any sweetness as a crutch — or it falls flat if the base wine doesn't have the depth to carry it. Zero Dosage has grown from a niche grower preference to a recognized category, with even large houses now releasing zero-dosage expressions. Read the full dosage explainer →