How is Orange Wine Made: Understanding Skin-Contact Whites

How is orange wine made? White grape varieties are fermented with their skins, a technique typically reserved for red wines. Orange wine is also known as skin-contact white wine. Evidence of earliest production points to Georgia and Iran around 6000 to 5000 B.C. The skins give up color, flavor, and tannins to the juice. Traditional white winemaking removes the skins before fermentation. Extended contact instead imparts a deeper hue, ranging from golden to amber. It also gives a distinct textural and aromatic profile. In maceration, fermentation occurs together with the grape skins. This contributes to the wine's character, its structure, and its flavor complexity. Collectors need to grasp this approach when they judge the potential of these wines.

What defines orange wine in the cellar?

The defining characteristic of orange wine in your cellar is its production method. It is the use of white wine grape varieties with maceration, similar to how rosé or red wine is made. Most white wines are processed without destemming or crushing. They go directly to the press. Winemakers can instead choose to crush white grapes for a short period of skin contact. That period typically runs three to 24 hours. This skin contact serves several purposes. It extracts flavor and tannin from the skins. The extracted tannin can also encourage protein precipitation without excessive Bentonite addition. The practice can raise the pH of the juice, which may be desirable for overly acidic grapes. The technique was more common in the 1970s. Some Sauvignon blanc and Chardonnay producers in California still practice it. This historical context can inform your understanding of how winemaking trends influence the fine wine market index. These tannins come from the skins, seeds, and sometimes stems. They contribute to the wine's structure and mouthfeel. You can learn more about the role of these phenolic compounds in our guide to tannins.

How does skin contact influence a wine's character?

Skin contact alters a white wine's character. It works mainly through the extraction of tannins, color, and aromatic compounds. Tannins sit mainly in the exocarp (skin) and seeds of grapes. They are extracted during maceration. This extraction contributes to the wine's "phenolic bitterness." The Court of Master Sommeliers notes this characteristic for white wines in its deductive tasting format. Alcohol level and the presence of tannins and extract influence the intensity of this bitterness. They also shape the overall "body" or weight of the wine.

The extended contact with skins also imparts a deeper color to the wine. That color can range from golden to amber. It provides visual clues about the production method. The OIV states that its score sheet for still wines evaluates "Quality" on aromatics and taste. For aromatics, that means the richness of the aromatic palette, the perception of different and changing odours (complexity), and the finesse of these odours. For taste, "Quality" integrates aromas, structure (acid, tannins, alcohol), coating elements (fatty), residual sugars, and bitterness (OIV). Lower temperatures emphasize acidity and tannins while muting aromatics. Higher temperatures minimize acidity and tannins and increase aromatics. These categorizations matter for understanding how wines are judged in competitions. They also relate to broader fine wine investment strategies.

Characteristic	White Wine (Traditional)	Orange Wine (Skin-Contact White)	Red Wine
Grape Type	White	White	Red/Black
Skin Contact	Minimal/None	Extended (3-24 hours or more)	Extended (throughout fermentation)
Color Source	Juice, minimal skin	Skins	Skins
Tannin Source	Minimal (seeds, press)	Skins, seeds	Skins, seeds, stems
Tannin Level	Low	Moderate to High	High
Color Range	Water white, straw, yellow, gold	Golden, amber, orange	Purple, ruby, garnet
Phenolic Bitterness	Possible, generally low	Yes	Yes
OIV Category	CATEGORY I: WHITE WINES OF NON-AROMATIC GRAPE VARIETIES (OIV)	CATEGORY XI: WHITE WINE WITH MACERATION (OIV)	CATEGORY III: RED WINES (OIV)

What are common faults in skin-contact white wines?

The unique production of skin-contact white wines can yield distinctive profiles. It also presents specific challenges that can lead to wine faults. Oxidation is a common fault, particularly in white wines. The AWRI notes that it can manifest as a dulling of the aroma, or 'cardboard', 'straw', 'hay-like', 'sherry-like', and 'madeirised' aromas. In extreme cases, 'wet wool', 'wet dog', or 'varnish-like' aromas can be evident (AWRI). Acetaldehyde can increase as wines age, through chemical oxidation of ethanol. It imparts odours described as 'over-ripe bruised apples', 'stuck ferment' character, or 'sherry' and 'nut-like' characters (AWRI).

Volatile acidity (VA), primarily acetic acid, is perceived as the odour of vinegar (AWRI). A sound wine immediately after fermentation usually has VA in the range of 0.1: 0.4 g/L. The AWRI states that the concentration regarded as detrimental is usually greater than 0.7 g/L. The legal maximum content of volatile acidity in Australian wines is 1.5 g/L, excluding SO2 and expressed as acetic acid (AWRI). Mousiness is an off-flavour reminiscent of caged mice or cracker biscuit. It is generally perceived late on the palate or after swallowing (AWRI). It is more likely to occur in wines with low concentrations of SO2 and low acidity. The AWRI reports an increased incidence when some winemakers experimented with extended lees ageing, high pH with minimal SO2, oxidative ageing, and minimal clarification or filtration in white wines.

Volatile sulfur compounds cause reductive faults. Those faults can result in unwanted sensory characters such as 'rotten egg gas' from hydrogen sulfide (H2S). Sulfhydryls can bring 'cabbage', 'garlic', 'onion', and 'rubber' (AWRI). Dimethyldisulfide (DMDS) can smell like 'onions' and 'cooked cabbage'. Diethyldisulfide (DEDS) can smell like 'burnt rubber' and 'garlic' (AWRI). Sulfur dioxide (SO2) is a common preservative. It has a pungent penetrating aroma that can cause sneezing and a choking sensation if too much is added. The AWRI notes that a content of free sulfur dioxide up to 15 mg/L has no adverse sensory effect. Higher levels can be problematic. Such regimes demand a fastidious approach to cellar hygiene. That prevents unwanted microbial growth and the possible formation of ‘mousiness’ (AWRI). Proper wine storage is essential to mitigate these risks.

How do you assess skin-contact white wines?

Assessing skin-contact white wines involves a systematic approach. It begins with visual inspection and progresses through aroma, palate, and finish. The first step is judging the wine's color. Color can offer clues about the grape variety and whether the wine was aged in wood. Skin-contact wines often present a deeper color than traditional whites. Heavy wines are generally deeper in color. You should also look for clarity, as the wine should ideally be clear. Sweeter, denser wines may leave thick, viscous streaks down the inside of the glass when swirled. Those streaks are known as "legs" or "tears". For more on assessing visual cues, consult our guide on wine ullage levels explained.

The "nose" of a wine, its bouquet or aroma, is a major determinant of perceived flavor. Gently swirling the wine in a glass exposes it to more oxygen. That releases the aromatic molecules that comprise the bouquet. This assessment can also reveal faults such as oxidation or bacterial contamination. On the palate, you perceive an array of taste and mouthfeel attributes. Those include textures, flavors, weight, and overall "structure". Holding the wine in your mouth for a few seconds saturates the taste buds. Breathing through pursed lips lets oxygen pass over the wine. That releases more esters.

Two key qualities to look for are "integration" and "expressiveness." In an integrated wine, none of the components (acid, tannin, alcohol) are out of balance. In an expressive one, the aromas and flavors are well-defined and clearly projected. "Complexity" refers to the richness of the aromatic palette. It covers the perception of several different and changing odours, associated with finesse (OIV). The "connectedness" of the wine describes the bond between the wine and its land of origin, or terroir.

Serving temperature significantly affects how a wine tastes and smells. The OIV recommends serving white and rosé wines at 10-12 °C. The Wine & Spirit Education Trust (WSET) suggests 10-13 °C for medium/full-bodied oaked whites. Lower temperatures emphasize acidity and tannins while muting aromatics. Higher temperatures minimize acidity and tannins while increasing aromatics. For optimal assessment, each sample must be presented in a glass corresponding to the category. That is at least the standardised international type (ISO 3591:1977) (OIV). Understanding these nuances is part of becoming a discerning collector. It is much like mastering the art of buying wine at auction.

How does orange wine pair with food?

Pairing orange wine with food requires a nuanced approach. It moves beyond the traditional adage of "White wine with fish; Red wine with meat." The adage is now considered outdated, given the variety of wine styles available. The most basic element in food and wine pairing is balancing the "weight" or body of the food with that of the wine. Alcohol level primarily determines a wine's body. The perception of tannins and extract can also influence it. For instance, an oaked Chardonnay from a warm wine region like Australia is typically "heavier" in body than a stainless steel fermented Chardonnay from a cooler region such as Chablis.

Acidity plays a dominant role in food and wine pairing. It can heighten the perception of flavors and stimulate the appetite. In dishes that are fatty, oily, rich, or salty, the acidity in wine can "cut through" the heaviness. That provides a refreshing contrast on the palate. A wine less tart than the dish it accompanies may taste thin and weak. A wine that seems "too tart" on its own may appear softer when paired with an acidic dish.

Residual sugar determines sweetness in wine. That sweetness often needs to be greater than the sweetness of the dish it accompanies. Sweetness can balance spice and heat, easing the burning sensation from peppers and spices. It can also contrast with salt.

Tannins contribute a gritty texture and a chalky, astringent taste. They react with proteins. Paired with dishes high in proteins and fats, such as red meat or hard cheeses, tannins bind to those proteins. They then come across as softer. In the absence of food protein, tannins react with proteins on the tongue instead. That accentuates astringency and creates a drying effect. Spicy and sweet foods can accentuate the dry, bitterness of tannins. That can lead to off-flavors in the wine. Grilling and blackening can add a bitter "char" to a dish that complements a tannic wine. Fish oils, though, can make tannic wines taste metallic or off.

Alcohol is the primary factor dictating a wine's weight and body. It increases the perception of density and texture. Salt and spicy heat can accentuate the alcohol and the perception of "heat" in the mouth. Alcohol can in turn magnify the heat of spicy food. Understanding these interactions allows you to craft pairings that enhance both the orange wine and your chosen cuisine. Explore more about optimal pairings in our food and wine matching guide.

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