Winemaking glossary

Whole, uncrushed berries ferment from the inside out under a CO2 blanket — banana-candy lift.

Carbonic maceration ferments whole, uncrushed grape berries inside an oxygen-free vessel charged with CO2. Fermentation begins inside each berry intracellularly, producing distinctive aromatic compounds. It is canonical to Beaujolais Nouveau and is sometimes used partially in other styles.

Blind cues: Banana-candy or bubble-gum lift in the nose. · Light tannin, juicy fruit, low oak. · Aromatics dominate over structure.

Adding sugar to under-ripe must to raise the eventual alcohol level of the finished wine.

Chaptalization (named for the early-19th-century French chemist Jean-Antoine Chaptal) is the addition of sucrose to grape must before or during fermentation in order to raise the final alcohol of the wine. The added sugar ferments away into alcohol; it does NOT make the wine sweet. Historically essential in cool climates (Burgundy, Champagne, Mosel) where grape sugars in marginal vintages would otherwise produce wines below 10% ABV; banned or restricted in warm climates (Italy below the Po, Spain, southern France, all of California, Australia) where grapes have no trouble reaching ripeness. Climate change is gradually reducing the practical need even in classic chaptalization regions.

Blind cues: Generally undetectable in well-balanced wines; the only real blind cue is unusual warmth / alcohol perception relative to the apparent vintage and region. · Disclosure is rare — most chaptalized wines are simply marketed at their final stated alcohol. · Modern chaptalization is more conservative than the historic 'chaptalize to 13.5%' default in marginal Burgundy vintages.

Fermenting different grape varieties together (rather than blending afterwards) — most famously Syrah with Viognier in Côte-Rôtie.

Co-fermentation ferments multiple grape varieties together as a single batch rather than vinifying separately and blending afterwards. The most famous example is the addition of a small percentage of Viognier (white) to Syrah in Côte-Rôtie, where co-pigmentation stabilizes color and adds floral lift.

Blind cues: Floral, violet, or apricot lift on top of red-fruit Syrah character. · Color depth higher than Syrah baseline. · Aromatic complexity that suggests intentional co-fermentation.

Multiple varieties planted together in the same vineyard and harvested + fermented as a single blend.

A field blend is a vineyard planting in which multiple grape varieties are interplanted (rather than separated by parcel) and then harvested and co-fermented together as a single wine. The historic European model — most pre-phylloxera vineyards were field blends — provides natural complexity, biodiversity-driven disease resistance, and a vintage-to-vintage stability that single-variety plantings often lack (since different varieties ripen and yield differently in different years). Modern producers in Vienna (Wiener Gemischter Satz), the Douro, the Rhône, the Loire, and increasingly in California are reviving the practice.

Blind cues: Hard to pin to a single variety — multiple aromatic threads layered together. · Often shows vintage-stable balance and complexity unusual for the apparent value tier. · Vineyard-driven character takes precedence over variety-driven character.

Bacteria convert sharp malic acid into softer lactic acid, smoothing the wine.

Malolactic conversion (MLF) is a secondary fermentation in which lactic acid bacteria convert tart malic acid into softer lactic acid. It is sometimes called malolactic fermentation, but it is technically a conversion rather than an alcoholic fermentation. Most premium reds and many white wines from warmer or oak-aged programs go through partial or full MLF.

Blind cues: Creamy or buttery texture (diacetyl signature). · Softer-than-expected acidity for the variety and climate. · Yogurt or fresh-cream notes alongside primary fruit.

Building a small, controlled native-yeast starter to launch a clean spontaneous fermentation.

Pied de cuve ("foot of the tank") is a small batch of must fermented a few days ahead of the main vintage, using only native (indigenous) yeasts. Once active, it is added to the main tank to inoculate it without resorting to commercial yeast. The technique combines the aromatic/textural complexity of native-yeast ferments with reliable starts and reduced risk of stuck or off-flavored fermentations.

Blind cues: More aromatic complexity than typical inoculated ferments. · Subtle off-fruit notes (apple skin, leesy texture) without obvious VA or brett. · Often paired with low-sulphur, longer-élevage profile.

Destemmed but uncrushed berries are fermented intact — partial intracellular fermentation gives lifted fruit with no stem character.

Whole-berry fermentation is the middle ground between conventional crushed-berry fermentation and full whole-cluster fermentation. The grapes are destemmed (so no stem tannin or vegetal pyrazine character) but the individual berries are kept intact rather than crushed. Inside each unbroken berry, intracellular (semi-carbonic) fermentation begins, producing lifted aromatic compounds, gentle colour extraction, and gentle tannin extraction. As the cap settles and berries split under their own weight or are gently punched down, conventional fermentation takes over. The result is a wine with the lifted freshness of carbonic-style winemaking but without the stem-derived flavours of full whole-cluster.

Blind cues: Lifted, perfumed primary fruit (especially red-fruit / cherry / raspberry in reds). · Slightly less saturated colour than fully crushed equivalents. · Soft, fine-grained tannin without the green / peppery / herbal edge of whole-cluster ferments.

Including stems during fermentation adds stemmy herbal lift and structural tannin.

Whole-cluster (or whole-bunch) fermentation includes intact grape clusters with stems during fermentation rather than destemming first. It is common in Pinot Noir, Northern Rhône Syrah, and a growing number of cool-climate New World programs. The stems contribute aromatic complexity and structural tannin.

Blind cues: Stemmy or herbal pepper lift on top of fruit. · Dry-feeling, finer-grain tannin alongside or instead of softer skin tannin. · Floral or violet aromatics that feel structural rather than purely fruit-driven.

Chilling crushed grapes before fermentation extracts color and aromatics without harsh tannin.

Cold soak (cold pre-fermentation maceration) chills crushed grapes for days before fermentation begins. Aqueous (water-based) extraction occurs preferentially over alcoholic extraction, drawing out color and aromatic compounds without the harsh tannin that hot fermentation can produce.

Blind cues: Vivid, primary-fruit aromatics in lighter reds. · Color depth higher than expected for the variety. · Tannin grain finer and less aggressive than the fruit weight implies.

Pressing red grapes immediately for pale, aromatic rosé or sparkling base, with minimal skin contact.

Direct press is the rosé and sparkling-base production method in which red grapes are pressed immediately on arrival in the winery — typically as whole clusters (vendange entière) — with little to no skin maceration. The result is a very pale, lifted, aromatic juice that ferments cleanly into a pale rosé (Provence-style) or a Champagne / Crémant blanc-de-noirs sparkling base. The opposite of saignée: rather than bleeding off colour from a red maceration, direct press never builds the colour in the first place.

Blind cues: Pale salmon, onion-skin, or near-white rosé colour. · Lifted floral and citrus-strawberry aromatics with minimal tannin. · Crisp, high-acid finish without the tannic grip of saignée rosés.

Keeping wine in contact with skins for weeks after fermentation finishes — denser tannin, better aging potential.

Extended maceration leaves the fermented wine in contact with grape skins for days or weeks beyond the end of alcoholic fermentation. The technique extracts additional polyphenols and softens harsh tannins through polymerization, producing more structured, age-worthy red wines.

Blind cues: Polished, dense tannin without harshness. · Concentrated dark fruit with structural depth. · Long, dry finish that suggests aging potential.

Bleeding off some pink-tinged juice from a red-wine fermentation to produce rosé and concentrate the remaining red.

Saignée (French for 'bleeding') is a rosé production method in which a portion of the lightly-coloured juice is drained off a red-wine maceration after a few hours to a couple of days of skin contact. The drained juice is then fermented separately as rosé. The dual purpose: produce a rosé as a by-product, and concentrate the remaining red-wine must (higher skin-to-juice ratio yields a denser red). Saignée rosés are typically deeper in colour, fuller-bodied, and more tannic than direct-press rosés.

Blind cues: Deeper, more saturated rosé colour (often pink-cherry or onion-skin rather than pale salmon). · Fuller body and more tannic grip than direct-press rosés. · More red-fruit and cherry-driven, less floral than direct-press styles.

Fermenting white grapes with their skins, like a red — produces orange wine with tannin and amber color.

Skin-contact white wines (often called 'orange wines') ferment white grapes with their skins for days, weeks, or months — much like a red wine. The result is a wine with amber to copper color, perceptible tannin, and oxidative aromatic complexity. It is canonical to Georgia (qvevri), Friuli (Italy), and Slovenia, and is used by natural-wine producers worldwide.

Blind cues: Amber to copper color in a wine that smells like a white. · Perceptible tannin grain — rare for whites. · Tea, dried apricot, or walnut notes.

American oak donates more aromatic intensity and a sweeter, coconut-dill profile than French oak.

American white oak (Quercus alba) is denser and higher in lactones than French oak (Quercus petraea or Quercus robur). It donates more conspicuous aromatic compounds — coconut, dill, sweet spice — and is traditional in Spain (Rioja), Argentina, Australia, and parts of California.

Blind cues: Coconut and dill alongside primary fruit. · Sweet vanilla cream where French oak would show cedar and nutmeg. · Visible aromatic intensity even with modest oak proportions.

Fermenting and aging in clay vessels — terroir-transparent texture without oak signature.

Amphora winemaking ferments and/or ages wine in clay vessels — qvevri (Georgia, traditionally buried), tinaja (Spain), Italian terracotta anfora, or modern unglazed clay tanks. Clay allows micro-oxygenation similar to old wood but adds no flavor compounds, so primary fruit and terroir come through more transparently. It is the historical method in Georgia (UNESCO-listed) and a common modern choice for natural and terroir-focused producers.

Blind cues: Texture and structure consistent with oxidative aging but no oak vanilla, toast, or coconut. · Often a subtle saline and earthy edge. · Skin-contact whites: amber color with grippy tannin.

Fermenting and aging in concrete — texture and micro-oxygenation without oak flavor.

Concrete fermentation and aging vessels — typically eggs, ovoids, or large tanks — provide gentle micro-oxygenation comparable to old oak but donate no flavor compounds. The egg shape is also said to encourage continuous lees movement (a slow internal vortex). Concrete is widely used for Chardonnay, Sauvignon Blanc, Grenache, and Rhône-style whites and reds where producers want texture without oak masking variety.

Blind cues: Roundness and weight without vanilla-toast oak signature. · Bright primary fruit preserved alongside textural depth. · Often confused with very neutral old-oak aging.

Long bottle aging before release shifts wine from primary fruit to tertiary complexity.

Extended bottle aging (months to years before release) lets primary fruit evolve toward tertiary complexity: dried fruit, leather, tobacco, mushroom, undergrowth. It is mandatory for some appellations (Rioja Reserva, Brunello di Montalcino, Vintage Port) and used voluntarily by quality-conscious producers worldwide.

Blind cues: Tertiary complexity (leather, tobacco, mushroom, dried fruit). · Brick, garnet, or amber hue evolution. · Resolved tannin in reds; honeyed weight in older whites.

A protective film of yeast (flor) shields wine from oxygen — chamomile, almond, salinity.

Flor (biological) aging is a Sherry-specific technique in which a film of indigenous Saccharomyces yeast forms on the surface of the wine in the barrel and protects it from oxidation while consuming alcohol, glycerol, and acetaldehyde. Fino and Manzanilla styles are aged exclusively under flor; Amontillado begins under flor and finishes oxidatively.

Blind cues: Green almond, chamomile, or saline edge. · Pale, straw-colored despite age. · Bread-yeast or fresh-dough aromatics.

Lees-aged in stainless steel or concrete — texture and complexity without oak signature.

Lees aging in non-oak vessels (stainless steel, concrete, or amphora) gives the texture and savory complexity of lees contact without donating oak flavor. It is increasingly common in fresh, terroir-driven white-wine programs (Albariño, Chablis, Muscadet, Vermentino) where producers want texture without oak masking variety.

Blind cues: Creamy texture and savory weight without vanilla or toast. · Bright acidity preserved. · Saline, mineral edge from extended lees contact.

Aging on dead yeast cells adds creamy texture, brioche notes, and complexity.

Lees are spent yeast cells left after fermentation. Aging the wine on its lees (sur lie) — sometimes with periodic stirring (bâtonnage) — releases polysaccharides and amino acids that add texture and aromatic complexity. Extended lees aging is essential for traditional-method sparkling wines.

Blind cues: Brioche, biscuit, or fresh-bread notes. · Creamy texture without overt buttery diacetyl. · Yeast or autolytic complexity in finishing length.

Stirring lees back into suspension during aging accelerates autolytic complexity.

Bâtonnage is the practice of stirring the lees (dead yeast cells) back into suspension during barrel aging, typically in white-wine programs. It accelerates autolysis, increases the release of polysaccharides and amino acids, and adds creamy texture and savory complexity faster than passive lees aging.

Blind cues: Creamy weight without overt buttery diacetyl. · Brioche/biscuit notes alongside primary fruit. · Long, savory finish.

Aging in oak barrels adds aromatic complexity, micro-oxygenation, and softens tannin.

Oak maturation refers to aging the wine in barrels (or with oak alternatives) before bottling. New barrels donate flavor compounds and tannin; older barrels provide gentle micro-oxygenation without strong flavor. Oak shapes mouthfeel, color stability, aromatic complexity, and aging potential.

Blind cues: Vanilla, toast, or sweet baking-spice notes integrated with primary fruit. · Smooth tannin grain in young wines. · Coconut or dill suggests American oak; cedar and nutmeg suggest French oak.

Deliberate exposure to oxygen during aging, producing nutty and dried-fruit complexity.

Oxidative aging deliberately exposes wine to oxygen — typically through long aging in semi-empty barrels, ullage tolerance, or barrel-rotation systems. It is canonical to Tawny Port, Madeira, certain Sherries, Vin Jaune, and traditional Rioja styles. The result is nutty, dried-fruit, and savory aromatic complexity that contrasts with reductive (fresh) winemaking.

Blind cues: Walnut, curry spice, bruised apple, or dried apricot. · Amber or brick hue regardless of variety. · Long, dry, savory finish.

A pyramid of barrels in which younger wine is blended into older — perpetual house-style consistency.

The solera is a fractional blending system canonical to Sherry, Madeira, Marsala, and some traditional sweet wines. Wine is drawn from the oldest barrels (the solera) for bottling; those barrels are topped up from slightly younger "criadera" rows, which are in turn topped from younger rows still. The result is a perpetual blend that maintains house style across vintages and accumulates very small fractions of extremely old wine indefinitely.

Blind cues: Aromatic intensity and tertiary complexity beyond what stated age suggests. · House-style consistency — labelled vintages are rare in solera-aged categories. · Often paired with flor or oxidative aging signatures.

Briefly saturating white must with oxygen pre-ferment to drop unstable phenolics and prevent later browning.

Hyperoxidation deliberately exposes white-grape must (juice) to large amounts of oxygen before fermentation begins. Unstable phenolic compounds polymerize and precipitate as a brown sludge that is removed before fermentation. The result is a more reductively styled, color-stable, longer-lived white wine, even though the technique sounds counterintuitive. It is associated with German and Austrian producers seeking maximal aromatic precision.

Blind cues: Tightly precise, reductive-leaning whites with striking aromatic clarity. · Long aging potential without premature oxidation. · Very pale color even after years in bottle.

Minimising or omitting added SO2 — fresher, more volatile, sometimes funky natural-wine profiles.

Low-sulphur and no-sulphur winemaking minimise or omit added sulfur dioxide (SO2), the conventional antimicrobial and antioxidant additive. The technique is central to the natural-wine movement, often paired with native-yeast ferments and minimal intervention. It sharply increases the risk of microbial spoilage, oxidation, and bottle variability, but at its best produces a fresh, vibrant, transparent style that some drinkers strongly prefer.

Blind cues: Vivid primary fruit, sometimes paired with funky/yeasty notes. · Cidery, mousy, or volatile-acidity faults more common than in conventional wines. · Cloudy or unfiltered appearance.

Adding tiny amounts of oxygen during aging to soften tannin and stabilize color — without barrel signature.

Micro-oxygenation (mox) deliberately bubbles very small, controlled amounts of oxygen through wine during aging — typically using a porous diffuser in a stainless-steel tank. It accelerates tannin polymerization, stabilizes color, and softens harsh structure, achieving some of the textural benefits of barrel aging without the flavor donation. It is widely used in modern red-wine programs from Madiran to Chile.

Blind cues: Polished tannin without noticeable oak-derived vanilla or toast. · Color depth and structural integration unusual for unoaked wine. · Reduced sulfide / struck-match character.

Acetic-acid character that adds lift in trace amounts but becomes a fault when too high.

Volatile acidity (VA) is dominated by acetic acid (the acid in vinegar) and its ester ethyl acetate (which smells like nail-polish remover or pear drops). Most wines carry a small amount of VA from normal fermentation; in trace amounts it can lift aromatics and add complexity. Above legal or perceptual thresholds it becomes a fault — typically associated with poor sanitation, oxygen exposure during aging, or stuck/sluggish fermentations. Some natural-wine and amphora programs deliberately tolerate higher VA in exchange for primary-fruit lift.

Blind cues: Faint sweet-sharp lift to the nose alongside primary fruit (positive, low VA). · Vinegar or nail-polish notes that dominate fruit (negative, high VA). · Sour-acetic palate impression even when titratable acidity is normal.

Drying ripe grapes on mats or in lofts concentrates sugars and flavors before fermentation.

Appassimento is the practice of drying healthy grapes after harvest — on bamboo mats, in attics, or in temperature-controlled rooms — to concentrate sugars and aromatic compounds before fermentation. The dried grapes can be fermented to dryness (Amarone) or with residual sweetness (Recioto, Vin Santo, Pasito styles).

Blind cues: Dried fig, date, raisin, and cocoa concentration without spirit lift. · High alcohol but no detectable fortification spirit warmth. · Glycerol-rich, almost chewy palate.

A beneficial fungus dehydrates and chemically transforms grapes — honey, saffron, apricot.

Botrytis cinerea, when it attacks ripe grapes under specific humid-then-dry conditions, becomes 'noble rot' — concentrating sugar, glycerol, and acidity while creating distinctive new aromatic compounds. It is the foundation of Sauternes, Tokaji Aszú, Trockenbeerenauslese German Riesling, and certain Loire late-harvest styles.

Blind cues: Honey, saffron, or dried-apricot intensity in the nose. · Sweetness paired with strikingly elevated acidity. · Viscous mouthfeel with concentrated finish.

Mechanically freezing must so water remains as ice and only concentrated sugary juice flows.

Cryo-extraction is the industrial sibling of Eiswein — instead of waiting for grapes to freeze on the vine, picked grapes or pressed must are mechanically frozen, then pressed while frozen so that pure water remains as ice and only the concentrated, sugary, acidic juice runs out. It is permitted in some regions and forbidden in others; in Sauternes it is regulated and only allowed under restricted, salvage-style conditions, while in some New World regions it can be used more freely.

Blind cues: Concentrated, pure varietal fruit with bright acidity and clear sweetness. · Lacks the honey-saffron-marmalade complexity of botrytis. · Less raisinated than appassimento sweet wines.

Pressing frozen grapes (or must) so that water stays as ice and only concentrated sugary juice flows.

Eiswein (German / Austrian) and icewine (Canadian VQA-regulated) are made from grapes left on the vine until they freeze naturally below roughly -7°C / 19°F, then pressed while still frozen. Water remains in the press as ice, while the sugary, acidic juice that escapes is highly concentrated. Cryo-extraction is the industrial cousin: must (not whole grapes) is mechanically frozen and pressed for a similar effect, and is allowed only in some regions.

Blind cues: Lush sweetness with razor-sharp acidity and pure varietal fruit. · Clean stone-fruit / citrus / tropical character without honey-saffron botrytis nuance. · Lower alcohol than other sweet-wine categories.

Leaving fully ripe grapes on the vine to dehydrate without botrytis, concentrating sugar and flavor.

Surmaturation (literally 'over-ripening') is the practice of leaving grapes on the vine well past phenolic ripeness so they dehydrate naturally on the bunch. Unlike botrytis-affected sweet wines, surmaturation requires dry, sunny autumn conditions where the grapes shrivel without fungal infection. The result is concentrated sugar and flavor with pure varietal character — broader and less precise than icewine, but cleaner and more fruit-driven than botrytis wines.

Blind cues: Concentrated dried-fruit character (apricot, raisin) without honey-saffron botrytis nuance. · Higher alcohol and broader mouthfeel than icewine. · Cleaner varietal fruit than botrytis-influenced sweet wines.

A single fermentation finished in bottle — cloudy, characterful Pet-Nat sparkling.

Méthode ancestrale (often sold as Pet-Nat — pétillant naturel) bottles a wine while its first fermentation is still in progress, finishing the ferment inside the bottle. There is no second fermentation, no liqueur de tirage, and traditionally no disgorgement, so most Pet-Nats are cloudy with sediment. It is canonical to Bugey-Cerdon, Limoux's Blanquette Méthode Ancestrale, and the modern natural-wine Pet-Nat movement worldwide.

Blind cues: Cloudy, sediment-bearing wine with soft fizz. · Off-dry to lightly sweet with raw, primary, sometimes funky aromatics. · Lower pressure than tank or traditional method.

The blending step in Champagne, Bordeaux, and other multi-variety regions where the final wine is composed from separately-fermented lots.

Assemblage (French for 'assembling') is the cellar step in which a final wine is blended from many separately-fermented and -aged base wine lots. In Champagne, the cellar master tastes through dozens or hundreds of base wines (different varieties, vineyards, vintages, oak vs steel) and assembles a non-vintage cuvée that matches the house style year after year. In Bordeaux, the négociant or château blends Cabernet Sauvignon, Merlot, Cabernet Franc, Petit Verdot, and Malbec lots from different parcels into the grand vin and second wine. The art is in matching grapes and lots to roles — backbone, fruit, aromatics, acidity, structural tannin — to create a balanced whole.

Blind cues: Balance across multiple structural elements (acid + body + tannin + aromatic) that no single varietal would naturally provide. · House-style consistency across vintages (for Champagne NV). · Often a slightly 'composed' integrated character vs the rawness of single-vineyard, single-variety wines.

Freezing and ejecting the lees plug from a traditional-method bottle to leave clear sparkling wine.

Disgorgement is the step in the traditional method where, after riddling has collected the dead yeast cells in the bottle neck, the neck is plunged into a freezing brine bath. The yeast plug freezes solid; the crown cap is removed and the internal pressure ejects the frozen lees plug cleanly. The bottle is then topped up with the liqueur d'expédition (which determines the final dosage / sweetness level) and corked.

Blind cues: Recently disgorged bottlings show vivid autolytic toast and lemony freshness. · Older-since-disgorgement wines develop honeyed, nutty, oxidative tertiary notes. · Bottles with 'dégorgé' or 'RD' dates often show the date on the back label.

The small sweetening dose added after disgorgement that sets the sparkling-wine sweetness category.

Dosage is the small addition of liqueur d'expédition (typically a base wine plus dissolved sugar, sometimes including a touch of older reserve wine or grape spirit) made immediately after disgorgement. The amount of residual sugar after dosage defines the sweetness category, from Brut Nature (0–3 g/L, usually no added sugar) through Extra Brut (≤6 g/L), Brut (≤12 g/L), Extra Sec (12–17 g/L), Sec (17–32 g/L), Demi-Sec (32–50 g/L), to Doux (>50 g/L).

Blind cues: Brut Nature / Zero Dosage shows lean, taut, savoury palate with no perceived sugar. · Brut shows a touch of fruit roundness without obvious sweetness. · Demi-Sec shows clear residual sweetness and richer mid-palate.

Adding a neutral grape spirit — usually before fermentation completes — preserves sweetness and lifts alcohol.

Fortification adds neutral grape spirit to wine, typically to halt fermentation while residual sugar remains (Port, Sherry liqueur de tirage, Vins Doux Naturels) or after fermentation completes (Fino Sherry). The added spirit raises alcohol to 15-22% ABV, preserves the wine, and shapes its aging trajectory.

Blind cues: Spirit warmth on the finish; alcohol clearly above 14.5%. · Residual sugar with spirit lift — not the same shape as pure botrytis sweetness. · Often raisin, fig, or candied-fruit aromatics from skin contact and concentration.

Refermenting young Chianti over partially-dried grape must — a soft, lifted Tuscan tradition.

Governo all'uso toscano restarts the fermentation of young Chianti by adding partially-dried (semi-appassiti) grape must to the tank weeks after the initial ferment ends. The renewed ferment softens tannins, completes malolactic conversion, slightly raises alcohol and adds aromatic lift. Once near-universal in Chianti, it fell out of fashion in the modern era and is now revived by some traditionalist producers.

Blind cues: Sangiovese with softer-than-expected tannin and slight raisin lift. · Slightly higher alcohol than baseline Chianti. · More aromatic intensity than typical for the appellation.

Re-fermenting Valpolicella over the spent skins of Amarone — concentrated, raisinated lift.

Ripasso is the Veneto practice of re-passing finished young Valpolicella over the lees and skins of pressed Amarone (the dried-grape concentrate). A short secondary ferment occurs, transferring color, alcohol, glycerol, and dried-fruit aromatic compounds. The result, Valpolicella Ripasso DOC, sits stylistically between Valpolicella Classico and Amarone — sometimes called "baby Amarone."

Blind cues: Valpolicella structure with detectable raisin / dried-cherry concentration. · Higher alcohol and warmer mouthfeel than base Valpolicella. · Less dense and viscous than full Amarone — but in the same family.

Second fermentation in a pressurised tank — fruit-forward, fresh sparkling wine.

The tank (Charmat / Martinotti) method runs the second fermentation inside a pressurised stainless-steel autoclave instead of the bottle. Lees contact is short relative to traditional method, preserving primary fruit and floral aromatics. It is the canonical method for Prosecco, most Asti Spumante, and a large share of New World volume sparkling production.

Blind cues: Soft, larger bubbles with shorter persistence. · Pronounced primary fruit and floral aromatics; little brioche or toast. · Often slightly off-dry with juicy mid-palate.

Adding sugar and yeast to a still base wine in bottle to trigger a second fermentation that traps CO2.

Tirage is the bottling step that defines the traditional method (méthode champenoise / méthode classique). A liqueur de tirage — a measured dose of sugar dissolved in still base wine plus selected yeast — is added before the bottle is crown-capped. The yeast ferments the added sugar in-bottle, producing roughly 1.2–1.5% additional alcohol and the trapped CO2 that creates the mousse. The exhausted yeast cells then begin autolysis, donating the brioche, biscuit, and toasted-nut aromatics that distinguish bottle-aged sparkling wine.

Blind cues: Persistent fine bead and creamy mousse signal a successful in-bottle ferment. · Fresh-bread / brioche / toasted-nut autolytic notes once the wine has aged on lees. · Slight prickle and lifted aromatic intensity vs the still base wine.

Second fermentation in the bottle, with extended lees aging — the Champagne method.

Traditional method (méthode traditionnelle, méthode champenoise) is the production method for Champagne, Cava, Crémant, English sparkling wine, and high-end New World sparkling. The second fermentation occurs inside the bottle, after which the wine is aged on its lees for months or years before disgorgement.

Blind cues: Fine, persistent mousse with small bubbles. · Toast, brioche, and yeast-derived complexity. · Higher tension and finishing acidity than tank-method styles.

Second fermentation in bottle, then transferred under pressure to a tank for filtration before re-bottling.

The transfer method conducts the second fermentation in bottle (as in traditional method) but then transfers the wine under counter-pressure to a tank for filtration and re-bottling. It is used for large bottle formats, lower-priced sparkling lines, and many Australian and US sparkling programs that want some autolytic complexity without the cost of riddling and disgorgement on every bottle.

Blind cues: Mousse and toast suggest in-bottle ferment, but mousse is slightly less fine than full traditional method. · Cleaner, more homogeneous palate than artisanal traditional-method bottlings. · Often labelled "bottle-fermented" without claiming traditional method.