This glossary covers the wine vocabulary a serious drinker actually encounters — viticulture and winemaking terms, regional designation systems, sommelier language, and the technical concepts that come up when reading labels or talking with the team at Boulder Wine Merchant. Where a term has its own deeper entry elsewhere in the encyclopedia (regions, varietals, appellations), the cross-reference is noted.

A

Acidity. The sharpness, brightness, or ‘crunch’ of a wine. Total acidity (TA) is measured in grams per liter of tartaric acid. Wines from cooler climates tend to have higher acidity; wines from warmer climates lower. Acidity preserves wine in the bottle and pairs with food.

AOC / AOP. Appellation d’Origine Contrôlée (the older name) and Appellation d’Origine Protégée (the EU-harmonized newer name). The French legal designation for a wine’s origin and rules of production. The top tier of French wine classification.

Appellation. A defined wine-growing area governed by rules — what grapes are permitted, what yields are allowed, how the wine must be vinified and aged. Different countries use different systems (AOP in France, DOC/DOCG in Italy, DOP/DOCa in Spain, AVA in the U.S.).

Assemblage. The act of blending finished base wines into a final cuvée — particularly important in Champagne and Bordeaux, where the year’s wine is built from many separate parcels and grapes.

Aszú. The botrytis-affected (noble-rot) berries used to make sweet Tokaji wine in Hungary. Picked by hand, berry by berry, and added in graduated puttonyos quantities to a base wine to produce one of the great sweet wines on earth.

Auslese. German Prädikat level: late-harvest grapes selectively picked at higher ripeness. Often partly botrytis-affected; often sweet but can be drier. The third tier of Prädikat ripeness above Kabinett and Spätlese.

Autolysis. The decomposition of dead yeast cells during extended aging on the lees. The process releases compounds that add brioche, toast, and creamy texture to sparkling wines like Champagne and aged whites like Muscadet sur lie.

AVA. American Viticultural Area. The U.S. system for defined wine regions — Napa Valley AVA, Russian River Valley AVA, etc. Less restrictive than European AOP equivalents: AVAs define place but not grape variety or yield.

B

Barrique. The standard Bordeaux oak barrel — 225 liters. The most common size used for premium wine aging globally.

Bâtonnage. Stirring the lees in barrel during white wine élevage to add texture and complexity. Common in white Burgundy and Loire Chenin.

Beerenauslese (BA). German Prädikat level: individually picked overripe berries, often botrytis-affected. Sweet. One step below the highest Trockenbeerenauslese.

Biodynamics. A farming philosophy developed in the 1920s by Rudolf Steiner that goes beyond organic to incorporate cosmic rhythms, preparations made from plants and minerals, and treating the farm as a self-sustaining organism. Many top fine-wine producers (Leflaive, Zind-Humbrecht, Lalou Bize-Leroy, the Joly family at Coulée de Serrant) farm biodynamically.

Blanc de Blancs. Champagne or sparkling wine made entirely from white grapes — typically Chardonnay.

Blanc de Noirs. Champagne made from black grapes (Pinot Noir, Pinot Meunier) but pressed off the skins immediately to produce a white wine.

Bodega. The Spanish term for a winery or wine estate. Equivalent to French domaine or Italian cantina.

Body. The weight and texture of a wine in the mouth — light-bodied (like Beaujolais or Riesling Kabinett), medium-bodied (most Burgundy and Loire Chenin), full-bodied (Cabernet, Châteauneuf-du-Pape, oak-aged Chardonnay).

Bota. The Spanish wine cask — particularly the traditional 500-600 liter oak butts used in the Sherry solera system.

Botrytis cinerea. Noble rot — a fungus that, under the right conditions of humid mornings and warm dry afternoons, dehydrates grapes and concentrates their sugars and acids. The foundation of great sweet wines: Sauternes, German Auslese and above, Tokaji Aszú, the sweet Loire Chenins.

Brettanomyces (Brett). A wild yeast strain that produces volatile compounds (often described as ‘horse blanket,’ ‘barnyard,’ or ‘sweaty leather’) in red wine. Some producers and drinkers tolerate or even value low levels; high levels are considered a fault.

Brix. A measurement of sugar content in grape must, expressed as a percentage. Used by winemakers to determine when to pick. Roughly: 22-24° Brix is typical for serious table wine; 25°+ for ripe New World styles; 35°+ for botrytized sweet wines.

Brut. Champagne dryness level — the modern standard, less than 12 g/L residual sugar.

Brut Nature. The driest Champagne style — less than 3 g/L residual sugar, no dosage added. Also called Zero Dosage or Pas Dosé.

Bud break. The first stage of the growing season — when vine buds open in early spring and the first leaves emerge. Vulnerable to frost; a key milestone in vintage assessment.

C

Carbonic Maceration. A fermentation technique where whole intact grape clusters are placed in a sealed vat under CO2. The grapes ferment internally before being crushed. Widely used in Beaujolais and increasingly elsewhere; produces bright, fruity wines with low tannin and a distinctive bubblegum-and-banana aromatic.

Cantina. The Italian term for a winery or wine cellar. Used both for individual estates and for cooperatives.

Cellaring. The practice of aging wine in the bottle, post-purchase, before drinking. Premium reds, dessert wines, and structured whites benefit from cellaring; most everyday wines are meant for immediate consumption.

Chai. The cellar where wine is made and stored, especially in Bordeaux. The above-ground equivalent of a cellar (cave).

Chaptalization. Adding sugar to grape must before or during fermentation to increase alcohol. Legal in cooler regions (Burgundy, Champagne, Germany at certain levels) where grapes may not reach full ripeness; banned in most warm regions where it would mask under-ripe fruit.

Charmat method. A sparkling wine production method where the second fermentation happens in a large pressurized tank rather than in individual bottles. The standard method for Prosecco and most affordable sparkling wines; produces fresher, fruitier wines than the bottle-fermented méthode champenoise.

Château. A wine-producing estate, used heavily in Bordeaux. Doesn’t require an actual castle — many Bordeaux ‘châteaux’ are modest farmhouses.

Climat. A specific named vineyard plot in Burgundy. The basis of the Burgundian classification system — there are over 1,200 climats in the Côte d’Or, with many subdivided further into individual parcels.

Clos. A walled vineyard — historically separated by stone walls. Many of Burgundy’s greatest vineyards are clos (Clos de Vougeot, Clos des Lambrays, Clos Saint-Denis).

Colheita. A single-vintage Tawny Port — aged for many years in cask (minimum seven years) before bottling. Distinct from Vintage Port, which is aged briefly in cask and built for long bottle aging.

Côte. French for ‘slope’ or ‘hillside.’ Used widely in Burgundy (Côte d’Or, Côte de Beaune, Côte de Nuits) and the Northern Rhône (Côte-Rôtie).

Crémant. French sparkling wine made by the traditional (Champagne) method but outside the Champagne region. Crémant de Loire, Crémant de Bourgogne, Crémant d’Alsace, Crémant de Limoux are the most respected.

Crianza. A Spanish wine aging classification — typically requiring two years of total aging including some time in oak. The base tier above Joven and below Reserva and Gran Reserva. Each Spanish DO sets its own specific requirements.

Cru. In French wine, a designated vineyard or village level — Grand Cru, Premier Cru, Cru Bourgeois, Cru Classé. The word also appears in some Italian contexts (Barolo crus, Barbaresco MGAs).

Cru Classé. A classified growth in the formal Bordeaux Médoc classification of 1855, which ranks châteaux from First Growth (Premier Cru) through Fifth Growth (Cinquième Cru). The classification has barely changed since 1855.

Cuvée. A specific bottling — often a producer’s named or numbered wine. In Champagne, the cuvée also refers specifically to the first, highest-quality pressing of the juice.

D

DOC / DOCG / IGT. The Italian wine classification system. DOC (Denominazione di Origine Controllata) is the basic appellation tier. DOCG (Denominazione di Origine Controllata e Garantita) is the highest tier, requiring tastings and stricter rules. IGT (Indicazione Geografica Tipica) is broader and looser — many of Italy’s most ambitious wines (Super Tuscans, Soldera) are bottled as IGT to escape DOC constraints.

DOP. Denominação de Origem Protegida (Portugal) or Denominación de Origen Protegida (Spain) — the EU-harmonized term for the top tier of national wine classification. Replaces or coexists with the older DOC and DO names.

Decanting. The act of pouring wine from its bottle into a decanter or carafe before serving. Two purposes: to separate the wine from sediment (most important for older reds) and to aerate the wine (most beneficial for young structured reds). Light wines and most whites do not need decanting.

Dégorgement (Disgorgement). The Champagne process of removing the dead yeast cells after second fermentation. The neck of the bottle is frozen, the cap is removed, and the frozen plug of yeast ejects. The bottle is then topped up with dosage and corked.

Demi-Sec. Off-dry — used both in Champagne (32-50 g/L residual sugar) and for still wines like Loire Chenin Blanc.

Domaine. A producing estate, typically Burgundian, that grows its own grapes and bottles its own wine. Equivalent to Italian fattoria/tenuta, Spanish bodega, Portuguese quinta.

Dosage. Sugar (usually mixed with wine) added to Champagne after disgorgement to balance the wine. Most modern Brut Champagnes have low dosage; Brut Nature has none.

Doux. The sweetest French wine designation — for Champagne (50+ g/L residual sugar) or for sweet still wines like sweet Vouvray or Coteaux du Layon.

E

Eiswein. Ice wine — German and Austrian sweet wine made from grapes that freeze on the vine and are pressed while still frozen. The ice (water) is left behind, concentrating the sugars and acids in the unfrozen juice. Sweet and intensely acidic.

Élevage. The aging of wine in cellar before bottling — could be in barrel, tank, amphora, or some combination. Élevage decisions (vessel, length, temperature, lees contact) shape the finished wine significantly.

En primeur. The Bordeaux futures system — buying wine while still in barrel, for delivery 18-24 months later. The wines are tasted in barrel each spring; buyers commit before bottling.

Erste Lage. The Premier Cru-equivalent tier in the VDP classification system for German wines. A step below Grosse Lage (Grand Cru equivalent).

Erzeugerabfüllung. German for ‘estate-bottled’ — confirms the wine was produced and bottled by the named estate from their own grapes.

Estate-bottled. A wine produced from the estate’s own vineyards and bottled at the estate itself, with no involvement from outside grape suppliers or bottlers. Used in many languages: mis en bouteille au domaine (French), Erzeugerabfüllung (German), imbottigliato all’origine (Italian).

Extra Brut. A Champagne sweetness category between Brut Nature and Brut — 0-6 g/L residual sugar. Bone-dry without being austere.

Extraction. The process of pulling color, tannin, and flavor compounds from grape skins and seeds during fermentation. High extraction (long maceration, frequent cap punching, high temperature) produces darker, more tannic wines; low extraction produces lighter, fresher wines.

F

Federspiel. The middle of three Wachau wine quality tiers (the others being Steinfeder below and Smaragd above). Roughly equivalent to a serious dry village-level wine elsewhere. Alcohol between 11.5% and 12.5%.

Fining. A clarification step where a substance (egg white, bentonite clay, gelatin, milk casein) is added to wine to bind with suspended particles and pull them to the bottom of the tank. Used to clarify and stabilize wine before bottling.

Flor. The film-yeast layer that grows on the surface of biologically-aged Sherry (Fino and Manzanilla), keeping the wine in contact with oxygen but preventing direct oxidation. Produces the distinctive nutty, salty character of biological-aged Sherry. Also used in Jura Vin Jaune.

Foudre. A large old oak vat — typically 2,000+ liters, sometimes much larger — used for aging wine without significant new-oak influence. Common in Alsace, Mosel, and Rhône.

Frizzante. The Italian term for lightly sparkling — less effervescence than spumante (fully sparkling). Lambrusco is the most famous frizzante category.

G

Garagiste. A small-production winemaker — originally a derisive term for tiny Right Bank Bordeaux producers in the 1990s (Le Pin, Valandraud, La Mondotte) but now used affectionately for any boutique fine-wine producer.

Garrigue. The wild herbal scrubland of the Mediterranean — rosemary, thyme, lavender, juniper, wild fennel — and the corresponding aromatic profile in southern French wines like Châteauneuf-du-Pape, Bandol, and the Languedoc reds.

Grand Cru. The highest classification tier in Burgundy and Champagne. In Burgundy, Grand Cru vineyards are individual appellations (Le Chambertin AOC, Le Montrachet AOC) rather than parts of village appellations. In Alsace and Saint-Émilion, the term has its own meaning.

Grand Marque. A traditional term for the large established Champagne houses (Moët, Veuve Clicquot, Pol Roger, Bollinger, Krug, etc.) that produce Champagne primarily from purchased grapes rather than from their own vineyards. The opposite of grower Champagne.

Grosses Gewächs (GG). The top dry single-vineyard wine in the German VDP system — the Grand Cru-equivalent tier. Must come from a designated Grosse Lage vineyard and meet specific quality standards.

H

Halbtrocken. German for off-dry — applied to wines with 9-18 g/L residual sugar. Between trocken (dry) and feinherb (a slightly sweeter category).

Hectare. A metric unit of land area — 10,000 square meters, or roughly 2.47 acres. The standard unit for measuring vineyard size globally.

Hectoliter (hl). A metric unit of liquid volume — 100 liters. Wine yields are typically expressed in hectoliters per hectare (hl/ha) — for instance, top Burgundy Grand Cru maximum yields are often 35-40 hl/ha.

I

IGP. Indication Géographique Protégée — the EU-harmonized term for the middle tier of European wine classification, between humble Vin de France and the top-tier AOP. Replaces the older French Vin de Pays designation. Many ambitious wines are bottled as IGP to escape AOP rules.

IGT. Indicazione Geografica Tipica — the Italian middle tier between basic Vino da Tavola and DOC/DOCG. Many of Italy’s most ambitious wines (Super Tuscans, Soldera, Anselmi after he left the Soave DOC) are IGT.

Inox. Stainless steel — the predominant material for fermentation and aging vessels for wines made in a fresh, oak-free style.

J

Jeroboam. A large-format bottle. In Champagne and Burgundy, 3 liters (equivalent to four standard bottles). In Bordeaux, the term traditionally means 5 liters (equivalent to six standard bottles). The naming gets complicated above magnum and varies by region.

Joven. Spanish for ‘young’ — a basic wine aging category for wines released within the year of harvest, with little or no oak aging.

K

Kabinett. The lightest German Prädikat level — light-bodied, low-alcohol (often 7-9%), can be dry or off-dry. The everyday Prädikat tier.

Kvevri (Qvevri). The traditional Georgian clay amphora used to ferment and age wine underground. The vessel is buried, covered with earth, and the wine ferments with extended skin contact. A traditional method dating back at least 8,000 years and now adopted by natural-wine producers globally.

L

Late harvest. Grapes picked later than typical to achieve higher sugar levels — used for sweet or off-dry wines. The German Spätlese, Auslese, etc. are formal late-harvest categories.

Lees. Spent yeast cells (and grape solids) that settle out after fermentation. Aging “on the lees” (sur lie) adds texture, complexity, and brioche-yeasty character. Critical to Champagne, Muscadet sur lie, and Burgundy white wine élevage.

Lieu-dit. French for “named place” — a specific vineyard plot, often used interchangeably with climat in Burgundy.

M

Maceration. The contact between grape skins and juice during red wine fermentation. Extracts color, tannin, and flavor compounds. Length and temperature of maceration significantly affect the finished wine.

Magnum. A 1.5-liter bottle — equivalent to two standard 750ml bottles. Wines age more slowly in larger formats; many collectors prefer magnums for cellaring.

Malolactic fermentation. A secondary bacterial fermentation that converts sharp malic acid (the acid of green apples) into softer lactic acid (the acid of yogurt). Standard for most reds. In whites, some producers (especially in white Burgundy and Champagne) put their wines through partial or full malolactic; others (most Sauvignon Blanc, dry Riesling) prevent it.

Marc. French for grape pomace — the skins, seeds, and stems left after pressing. Marc is also the name of the brandy distilled from this material (Marc de Bourgogne, Marc de Champagne).

Méthode Ancestrale. The original sparkling-wine method, predating the méthode champenoise. A single fermentation is bottled before completion; the wine finishes fermenting in bottle. Lower pressure than Champagne; often slightly cloudy. The basis of Pétillant Naturel (pét-nat).

Méthode Champenoise / Traditionnelle. The traditional Champagne method of sparkling wine production. Base wines are bottled with sugar and yeast; secondary fermentation in bottle creates the bubbles; the wine ages on the lees; the dead yeast is disgorged; the bottle is topped up with dosage. The standard for Champagne and Crémant.

Minerality. A controversial term describing wines that show stone-like, salty, or savory characteristics often attributed (sometimes inaccurately) to soil composition. Most often used for high-acid whites from limestone or volcanic soils. The scientific reality is more complex than “the wine tastes like the rocks beneath it” but the sensory experience is real.

Mis en bouteille au domaine. “Bottled at the estate” — the French equivalent of estate-bottled. The producer grew, made, and bottled the wine themselves with no intermediary.

Moelleux. French for sweet — applied especially to sweet Chenin Blanc from the Loire (Vouvray Moelleux, Bonnezeaux, Quarts de Chaume). Typically 18-45 g/L residual sugar.

Monopole. A vineyard owned entirely by one producer. Famous Burgundian monopoles include La Romanée-Conti (DRC), La Tâche (DRC), Clos des Lambrays (Domaine des Lambrays), Clos de Tart (LVMH-owned), La Grande Rue (Lamarche).

Mousse. The bubbles and foam of a sparkling wine. Fine mousse means small persistent bubbles; coarse mousse means large quickly-dispersing bubbles. A signal of quality.

Must. Unfermented or fermenting grape juice — the wine in progress, between crushing and finished fermentation.

N

Natural wine. A loosely-defined movement (and category) emphasizing minimal-intervention winemaking: organic or biodynamic farming, native yeast fermentation, no fining or filtration, minimal or no added sulfur. The category overlaps with but is not identical to biodynamic, orange, and pét-nat wines.

Négociant. A merchant who buys grapes or finished wine from growers, then blends and bottles under their own label. Many of the great names of Burgundy (Louis Jadot, Joseph Drouhin, Bouchard Père et Fils) and Champagne (Krug, Bollinger, Roederer) operate primarily as négociants.

Non-vintage (NV). A wine blended across multiple vintages — most commonly seen in Champagne (where NV bottlings are the house style) and Port (where Tawny Port is built across many years in solera).

O

Oak. The wood traditionally used for fermentation and aging vessels in fine wine. French oak (most commonly from the Tronçais, Allier, Nevers, Vosges forests) tends to give subtler vanilla and spice; American oak gives bolder vanilla, coconut, and dill. Toast level (the amount of charring on the inside of the barrel) significantly affects the wine’s flavor.

Old vine (Vieilles Vignes). Vines old enough to produce smaller, more concentrated yields — typically 35+ years, often much older. No legal definition; producers use the term to indicate selection from older parcels.

Orange wine. White wine made with extended skin contact during fermentation — sometimes weeks or months. The result is amber-colored, tannic, oxidative, and complex. Originated in the Caucasus (Georgia, Slovenia, Friuli) and now made globally. See /encyclopedia/regions-encyclopedia/friuli-encyclopedia/ for the modern category’s spiritual home.

Oxidation. The chemical reaction of wine with oxygen. Controlled oxidation (during élevage, in Sherry, in Madeira, in Tawny Port) builds complexity. Uncontrolled oxidation in a finished bottle is a fault — browning of color and loss of fresh fruit character.

P

Passito. Italian for wine made from grapes dried (appassimento) before pressing. The dehydration concentrates the sugars and acids. Recioto della Valpolicella, Vin Santo, and Moscato di Pantelleria Passito are the famous examples. Amarone is a dry passito — fermented to dryness despite the high starting sugar.

Pét-nat (Pétillant Naturel). Sparkling wine made by the méthode ancestrale — bottled before primary fermentation is complete, so the wine finishes fermenting (and creates its bubbles) in bottle. Often slightly cloudy from undisgorged lees. Lower pressure than Champagne.

Phylloxera. The aphid (Daktulosphaira vitifoliae) that destroyed most European vineyards in the late 19th century. The pest is native to North America; European vines (Vitis vinifera) have no resistance to it. The solution: graft European vines onto American rootstock. Most of the world’s vineyards today are grafted; ungrafted (pre-phylloxera) sites are extremely rare and prized.

Premier Cru. The middle classification tier in Burgundy — between village and Grand Cru. In Champagne, Premier Cru is a village-level classification one step below Grand Cru. In Saint-Émilion, Premier Grand Cru Classé is the top tier.

Press wine. Wine extracted from grape skins and pulp after the free-run juice has been collected. Higher in tannin and color than free run; often blended back into the main wine in small amounts for structure.

Prädikat. The German classification system based on grape ripeness at harvest. From lightest to ripest: Kabinett, Spätlese, Auslese, Beerenauslese, Eiswein, Trockenbeerenauslese.

Punt. The indented bottom of a wine bottle. Originally functional (made the bottle easier to stack and helped collect sediment); now mostly aesthetic, though sparkling-wine bottles still have deep punts for structural strength.

Q

Quinta. A Portuguese wine estate — equivalent to French château or Italian tenuta. Used heavily in the Douro Valley for the great Port quintas (Quinta do Vesuvio, Quinta do Noval, Quinta do Crasto).

R

Racking. Moving wine from one vessel to another, leaving behind the lees and sediment. A traditional clarification step during élevage.

Recioto. A Veneto sweet wine style, particularly Recioto della Valpolicella (red, Corvina-based) and Recioto di Soave (white, Garganega-based). Made from appassimento-dried grapes but fermented to retain residual sugar.

Remuage (Riddling). The Champagne process of slowly turning bottles from horizontal to nearly vertical (neck-down) so the dead yeast collects in the neck for disgorgement. Traditionally done by hand on wooden A-frame pupitres; now mostly mechanized.

Reserve / Reserva / Riserva. Indicates extra aging, typically required by a region’s rules. Italian Riserva specifies barrel and bottle time and is legally enforced. Spanish Reserva similar. French “Reserve” is unregulated and decorative — it means whatever the producer wants it to mean.

Rootstock. The lower portion of a grafted vine — typically American Vitis species (Riparia, Rupestris, Berlandieri, or their hybrids) chosen for resistance to phylloxera and adaptation to specific soils. Different rootstocks affect vigor, ripening timing, and stress tolerance.

Rosé. Wine made from red grapes but with limited skin contact, producing a pink color. The two main methods: maceration (short skin contact during fermentation) and saignée (“bleeding off” pink juice from a red-wine fermentation early to concentrate the remaining red wine).

S

Saignée. A rosé-making technique: a portion of pink juice is bled off from a red-wine fermentation early in the process. The bled juice becomes rosé; the remaining red wine becomes more concentrated. Common in the southern Rhône and Bordeaux.

Sec. French for dry. Used for still wines (sec, demi-sec) and for Champagne (where Sec confusingly means slightly sweet, 17-32 g/L).

Sediment. Solid material that settles in a wine bottle over time — tartrate crystals (harmless), color pigments, and tannin compounds that have polymerized and dropped out of solution. Cellaring older red wine standing upright before serving helps the sediment settle; decanting separates the clear wine from it.

Single Vineyard. A wine made entirely from grapes grown in one specific named vineyard. Used to express the character of a particular site, distinct from blended wines made across multiple vineyards.

Skin contact. The time during fermentation when grape juice remains in contact with the skins. Long skin contact for reds (extracts color and tannin); short or no skin contact for whites (preserves brightness). Extended skin contact for whites produces orange wine.

Smaragd. The top quality tier in the Wachau classification — the most concentrated, age-worthy style. Minimum 12.5% alcohol. The middle and lower tiers are Federspiel and Steinfeder.

Solera. The fractional-blending aging system used for Sherry, Madeira, and some Vermouth. Wine is drawn from the oldest barrel for bottling and replaced from the next-oldest barrel, and so on. Every bottle of solera-aged wine contains wine of multiple ages.

Sommelier. A wine professional, typically restaurant-based, with formal training in service, pairing, and selection. The Court of Master Sommeliers and the Master of Wine programs are the two most prestigious credentials.

Spätlese. German Prädikat — “late harvest,” more concentrated than Kabinett. Can be vinified dry or off-dry. The second tier of Prädikat ripeness above Kabinett.

Stelvin (Screwcap). The aluminum screwcap closure widely used for whites and increasingly for reds. Provides a more consistent seal than cork and eliminates cork taint; allows almost no oxygen exchange, which suits aromatic whites but may not be ideal for very long-aging reds.

Sulfites. Sulfur dioxide compounds (SO2) added to wine as a preservative and antibacterial. All wine contains some sulfur (a byproduct of fermentation); most wine has added sulfur as well. Wines labeled “no added sulfites” rely on careful winemaking and the wine’s natural acidity for stability.

Sur lie. French for “on the lees” — aging wine in contact with its lees (spent yeast and grape solids). Adds texture and complexity. Common in Muscadet sur lie, white Burgundy, and Champagne base wines.

Sur pointe. A Champagne storage position — bottles stored neck-down (pointe means “point”), with the lees collected at the cork. The wine ages more slowly in this position and is sometimes used for very long aging before late disgorgement.

Super Tuscan. A category of Tuscan red wine, typically Cabernet- or Merlot-led (often with significant Sangiovese), bottled outside the regional DOC system as IGT Toscana. The original Super Tuscans (Sassicaia 1968, Tignanello 1971) broke from Chianti DOC rules to use non-indigenous grapes.

T

Tannin. Compounds in grape skins, seeds, and stems (and in oak barrels) that give red wine its grip and structure. Felt as drying or astringent on the palate. Tannin softens with bottle age as polymers grow longer and drop out of solution.

Tartrate crystals. Harmless crystalline deposits — potassium bitartrate — that sometimes form in wine bottles, especially when stored cold. Sometimes called “wine diamonds.” Often present in serious unfiltered wine.

Terroir. The cumulative effect of soil, climate, exposure, elevation, and human practice on a wine’s character. The central concept of European fine wine — the idea that a specific place produces a specific, recognizable style.

Tirage. The mixture of sugar and yeast added to base Champagne wines to start the secondary fermentation in bottle. The bottle is then sealed and aged on the lees while the yeast metabolizes the sugar and produces the bubbles.

Toast. The level of charring on the inside of an oak barrel. Light toast preserves more of the oak’s wood character; medium toast (the most common) adds vanilla, baking spice, and roasted notes; heavy toast adds coffee, dark chocolate, and smoke. Affects the finished wine significantly.

Trocken. German for dry — applied to wines with less than 9 g/L residual sugar. Halbtrocken (9-18 g/L) is off-dry.

Trockenbeerenauslese (TBA). The highest German Prädikat — individually picked dried, botrytized berries. The most concentrated dessert wines made. Equivalent to top Sauternes or Hungarian Aszú in concentration and sweetness.

U

Ullage. The empty space between the wine and the cork in a bottle — and the amount of evaporation that has occurred over time. Used in fine-wine auction terminology to describe condition. ‘Bottle neck’ or ‘top shoulder’ ullage is normal for older wines; ‘mid-shoulder’ or worse suggests compromised storage.

V

VDN (Vin Doux Naturel). A French category of fortified sweet wines — Muscat de Beaumes-de-Venise, Banyuls, Maury, Rasteau, Rivesaltes. Fermentation is stopped early by adding grape spirit, retaining the grapes’ natural sweetness.

VDP. Verband Deutscher Prädikatsweingüter — the German private association of top growers, with their own vineyard-quality classification (Grosse Lage, Erste Lage, Ortswein, Gutswein) that runs parallel to (and is often more meaningful than) the official German legal classification.

Vendange (Vendanges). French for harvest. Vendanges Tardives is the Alsace term for late-harvest wines — sweet wines from grapes left on the vine past optimal ripeness.

Veraison. The stage of the growing season when grapes change color and begin to ripen — from green to red (for red grapes) or from green to translucent (for whites). A key milestone in vintage assessment; the timing of veraison affects ripeness at harvest.

Vieilles vignes. French for “old vines.” Used informally to indicate selection from older parcels. No legal definition.

Village wine. Burgundy classification — grapes from anywhere in a single village (Volnay, Pommard, Meursault, etc.). The tier below Premier Cru.

Vin Jaune. The distinctive Jura yellow wine — Savagnin aged under flor yeast for six years and three months in oak. Bottled in the 620ml clavelin. Nutty, saline, slightly oxidative; one of the most distinctive wines on earth.

Vin Santo. Tuscan dried-grape sweet wine — typically made from Trebbiano and Malvasia (or, in the Vin Santo del Chianti Classico, Sangiovese for the rare Occhio di Pernice red version). The grapes are dried for months on straw mats before pressing, then aged for years in small barrels (caratelli) of varying woods.

Vintage. The year the grapes were harvested. Used both for the year itself and for wines that come from a single year (vintage Champagne, vintage Port). Non-vintage (NV) wines are blended across multiple years.

Vintner. A wine producer. Used more in American English than in European wine traditions, where “winemaker,” “domaine,” “estate,” and the equivalent terms in other languages are more common.

Vitis vinifera. The European wine grape species — the source of virtually all fine wine. Distinct from American species (Vitis labrusca, Vitis rotundifolia) which produce wine of very different character and are mostly used for table grapes or rootstock.

W

Whole cluster. A red-wine fermentation technique that includes intact grape clusters (with stems) in the fermenter, rather than destemming. Adds tannin, spice, and aromatic lift. Used by traditional Burgundy producers (Dujac, DRC) and increasingly by ambitious New World Pinot producers.

Y

Yeast. The microorganism that converts grape sugar into alcohol and CO2 during fermentation. Wild yeasts (native to the grape skins and winery) are preferred by traditional and natural-wine producers; cultured (commercial) yeasts give more predictable results and are widely used in volume production.

Yield. The amount of grapes (or wine) produced per unit of vineyard area, typically expressed as hectoliters per hectare (hl/ha). Lower yields generally produce more concentrated wine. Top Burgundy Grand Cru maximum yields are around 35 hl/ha; basic Bordeaux can be 60-65 hl/ha; mass-production zones can run 100+ hl/ha.