Tannat: Madiran's Bold Red and Uruguay's Signature Grape

Tannat is a dark, powerful red grape from southwest France, best known as the backbone of Madiran and as Uruguay’s signature wine. As the name hints, it is one of the most tannic grapes there is: deep in color, full-bodied, with black fruit, licorice and smoke. Madiran versions are firm and built to age; Uruguay’s are usually riper and easier to drink young. It is a wine for steak, barbecue and slow-cooked meat, not for sipping on its own.

What Tannat tastes like

Wine Folly describes Tannat as dry and full-bodied, with high levels of structured, astringent tannins and medium acidity, at 13.5–15% alcohol. Its main flavors are black currant, plum, licorice, smoke and cardamom.

Trait	Typical Tannat
Sweetness	Dry
Body	Full
Tannin	High
Acidity	Medium
Alcohol	13.5–15%
Flavors	Black currant, plum, licorice, smoke, spice
Madiran vs Uruguay	Madiran grippier and slower to open; Uruguay riper, smoother, ready sooner (Wine Folly)

The Madiran rulebook describes the local wines as red- and black-fruited when young, moving toward candied fruit and spice with age, round and rich but with a fresh finish. Uruguay’s wine institute (INAVI) describes its Tannats as harmonious, elegant and powerful, with red fruit and spice. In our view, Tannat is the red to reach for if you find Cabernet Sauvignon too polite.

Madiran: Tannat’s home

Madiran is a small red-wine appellation in the foothills of the Pyrenees, south and west of the Adour river. Its official rulebook, the cahier des charges homologated in November 2025, sets out what the name means:

• Red still wine only. Rosé and white are not Madiran.
• Tannat at least 60% of each grower’s vineyard and of the final blend. The other permitted grapes are Cabernet Franc, Cabernet Sauvignon, Fer and Manseng Noir.
• Destemming is compulsory, and the wines are aged at least until April 15 after the harvest, after malolactic fermentation, in containers over 100 liters, so the tannins can soften. They can’t be sold to consumers before May 1 of the year after the harvest.
• Deep color by rule: the wines need a minimum measured color intensity, and they can’t exceed 14% alcohol after any chaptalization (adding sugar to the must).
• 37 communes in three departments: 28 in Pyrénées-Atlantiques, 6 in Hautes-Pyrénées and 3 in Gers. The appellation dates from a decree of July 10, 1948.

The cahier explains why such a tough grape took over. From the 1400s, Madiran sold its wines to the Pyrenees and later the West Indies, markets that wanted dark, concentrated reds that kept well. In the 18th century, Tannat, “very colored and tannic,” joined the older local grapes Fer and Bouchy (the local name for Cabernet Franc). The rulebook calls Tannat vigorous, fairly late-ripening and prone to gray rot, but able to ripen on Madiran’s well-drained slopes, helped by a warm, dry south wind of the foehn type that blows about one day in three in late summer and autumn.

It also credits growers since the 1980s with wines whose tannins are “still present but more melted.” Wikipedia lists other southwest French appellations that use Tannat, including Irouléguy, Tursan and Béarn, and it is a minor partner in Cahors, where our Malbec wine guide explains the rules. For the bigger picture, see our French wine guide.

Micro-oxygenation

Tannat’s hard tannins also inspired a winemaking technique. According to Wikipedia, efforts to tame the grape’s harsh tannins led to micro-oxygenation: in 1990, Madiran winemaker Patrick Ducournau experimented with adding controlled amounts of oxygen to Tannat while it was fermenting.

Uruguay: Tannat’s second home

Tannat crossed the Atlantic with the Basques. Uruguay XXI, the government’s export agency, says Basque-French immigrant Pascual Harriague introduced the grape to the department of Salto around 1870. INAVI’s consumer site, Vinos del Uruguay, adds that Harriague arrived in 1840, settled in Salto and, after years of trials, found conditions for a great red; Uruguayan Tannat was shown at the Barcelona and Paris exhibitions of 1888 and 1889. Wikipedia notes that the grape is still sometimes called Harriague in Uruguay.

Today Tannat is the country’s national grape:

• About 1,555 hectares (3,842 acres), 26.5% of Uruguay’s vineyards, per INAVI’s Vinos del Uruguay. INAVI calls Uruguay the world’s leading Tannat producer. Uruguay XXI gives a slightly higher “more than 1,570 hectares.”
• Mostly in the south of the country, with plantings also along the Uruguay river, in the north and in the east (INAVI). Uruguay XXI credits the Atlantic climate and ocean influence for its style.
• April 14 is celebrated as Tannat Day.
• Exports: Brazil is Uruguay’s main wine market, followed by the United States, the United Kingdom and Mexico, according to Uruguay XXI.

Wine Folly describes Uruguayan Tannat as smoother, with riper black fruit, and ready to drink earlier than Madiran. We’d start with a Uruguayan bottle if you are new to the grape.

Where else Tannat grows

Wine Folly, citing University of Adelaide data for 2021, gives these plantings:

Country	Area (2021)
France	2,513 ha (6,210 acres)
Uruguay	1,725 ha (4,263 acres)
Argentina	837 ha (2,068 acres)
United States	247 ha (610 acres)
South Africa	114 ha (282 acres)
Brazil	109 ha (269 acres)
Others	66 ha (163 acres)
World total	5,611 ha (13,865 acres)

INAVI’s newer 1,555-hectare figure for Uruguay is lower than the 2021 number, so treat both as approximate. In Argentina, Tannat is one of Salta’s key reds (see our Argentina wine guide). In the US, Wikipedia reports that California plantings grew from 140 acres (57 ha) in 2005 to 579 acres (234 ha) in 2016, most of it from Tablas Creek cuttings.

How to read the label

• “Madiran” means a red with at least 60% Tannat, aged at least until mid-April after the harvest. The grape is often not named.
• “Tannat” on a Uruguayan, Argentine or US label means a varietal wine; check the back label for oak ageing.
• Blends: on French labels the blend is set by the appellation; elsewhere, check the back label for the other grapes.
• Vintage: in our view, a Madiran with 5 to 10 years of age is far easier to enjoy than a brand-new release.

Food pairing

Tannat needs fat and protein to tame its tannins. Wine Folly suggests:

Food	Why it works
Barbecue and richly marinated grilled meats	Char and fat soften the tannins
Medium-rare T-bone steak, well seasoned	Protein binds with tannin; salt softens bitterness
Cassoulet	Duck, sausage and beans; Wine Folly says the richness softens the tannins
Grilled porcini mushrooms	Earthy, meaty and savory

We’d add duck confit and magret, the southwest French classics, and Uruguayan asado with chorizo and short ribs. For more steak ideas, see our guide to wine with steak.

Good-value bottles to try

We don’t name specific Tannat bottles on this page yet. Our picks follow how we rate wine: every wine needs a published critic score for a named vintage and a US price checked at two or more retailers, and we haven’t completed that check for a Tannat.

What to look for: in our view, Uruguayan Tannat is often good value, and a varietal bottle or a Tannat blend from a well-known Uruguayan winery is an easy start. Under our thresholds, a Tannat scoring 90 to 92 points is a Great Value at $20 or less and a Good Value at $30 or less.

How to serve it

• Temperature: Wine Folly suggests 60–68°F (15–20°C).
• Glass: an oversized, Bordeaux-style glass, per Wine Folly.
• Decanting: at least an hour, or use an aerator.
• Ageing: Wine Folly gives 10+ years for good bottles; Madiran in particular needs time.

Tip: If a young Madiran feels harsh, decant it and serve it with food. Its tannins are built for the table, and a steak or cassoulet will make the same wine taste much softer.