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SOMMWINE GRAPE LIBRARY
Malbec
Also known as Côt / Cot (French cultivar name; Plantgrape confirms Malbec as the authorized French name for plant-propagating material), Auxerrois (traditional Cahors/Quercy regional name; not the separate white Auxerrois cultivar), Malbeck (historical spelling; not a separate cultivar)
Malbec is the international name for the black grape known in France as Côt, with Auxerrois used as a local name in Cahors. Genetic research traces it to southwestern France and identifies Magdeleine Noire des Charentes and Prunelard as its parents, although historical accounts differ over the most precise place of origin. The grape now has two defining reference points: structured, tannic Cahors and Argentina, where Malbec is the emblematic variety and styles range from rich fruit to fresher, floral high-altitude wines.
ColourRed
ClassificationVitis vinifera L. subsp. vinifera; black-berried wine-grape cultivar.
Typical bodyOften medium-full to full in ripe Argentine and structured Cahors examples; lighter or fresher expressions also occur. Body is not fixed by cultivar alone.
Typical acidityCan retain notable acidity; Argentina’s INV describes Argentine Malbec generally as high in acidity. The result in a bottle varies with site, ripeness, vintage and winemaking.
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At a Glance
Cahors: red AOP wine based on Malbec/Cot; the cited specification sets a minimum 70% Cot and permits Merlot and Tannat as accessories. WSET describes traditional examples as deeply coloured and notably tannic.
Typical tannin: Medium to high, ranging from smoother in some Argentine styles to firmer in traditionally structured Cahors; maturity and extraction strongly affect texture.
Aromas and Flavours
- INV describes Argentine Malbec generally with plum, blackberry, cherry and violet, alongside intense garnet/violet colour; descriptors vary with maturity and production.
- WSET describes deep colour, black-fruit character and smooth tannins in general Malbec; its Cahors discussion emphasizes dark berry, cedar and earth in mature wines.
Where It Grows
- Cahors
- Bordeaux
- Mendoza
- France
- Argentina
Climate and Winemaking
Style depends on climate and site. WSET contrasts fuller, richly fruited lower-altitude Argentine Malbec with fresher, more elegant and floral examples from higher sites. These are broad regional tendencies, not altitude guarantees. The French cultivar data describes Cot as an early variety under its reference conditions.
Plantgrape describes Cot as vigorous and sensitive to coulure (poor fruit set), with management and clonal selection helping reduce the problem. It reports sensitivity to winter frost in young plantings, less fertile shoots following spring frost, risk of berry shedding at maturity, and some susceptibility to phomopsis and leafhoppers. The French reference calls it early, with maturity about 2.5 weeks after Chasselas. Avoid generalizing this timing across climates.
Malbec is made as a varietal wine and in blends. Plantgrape reports that well-managed, adequately mature Cot can yield coloured, aromatic, tannic wines with ageing capacity and also suit rosé vinification; insufficient maturity can leave hard, bitter herbaceous/vegetal character. Oak maturation is an optional producer choice, not a cultivar trait.
Food Pairings
- Editorial suggestion: try a structured, tannic Cahors or Malbec with grilled or braised beef, lamb, or other savoury dishes with enough flavour intensity to meet the wine. Pair to the actual bottle’s body and tannin.
- For softer, fruit-led examples, consider grilled vegetables, mushrooms or medium-aged cheeses; these are flexible editorial ideas rather than cultivar facts.
Ageing Potential
- Plantgrape reports good ageing capacity for well-managed, sufficiently mature Cot; WSET notes Cahors’ reputation for tannic, long-lived wines. This is style and quality potential, not a universal ageing guarantee.
WSET Learning
Test Your Knowledge
- How do the legal composition rule and tannic reputation of Cahors differ from the varietal identity Malbec has developed in Argentina?
- Why is Auxerrois a potentially confusing synonym for Malbec?
- What do WSET and Argentina’s INV say about variation between Argentine Malbec styles, and why should altitude not be treated as the only cause?
