Macabeo
white · Spain
also known as Viura
Under the name Viura it forms the principal grape of white Rioja, where extended barrel ageing can develop richer, oxidative character in the traditional style pioneered by producers such as López de Heredia. As Macabeo, the same variety anchors much of Catalonia's Cava production alongside Xarel·lo and Parellada, contributing gentle stone-fruit character and a neutral, fresh base.
Malagousia
white · Northern Greece
Nearly lost to cultivation until the late twentieth century, Malagousia was revived largely through the efforts of Greek researcher and winemaker Evangelos Gerovassiliou, who propagated surviving vines found near Naoussa. It produces intensely perfumed wines with jasmine, peach and citrus character, and has since spread to vineyards across northern and central Greece.
Malbec
red · Southwest France (Cahors)
also known as Côt, Auxerrois
Historically one of the six permitted red grapes of Bordeaux, Malbec lost ground there after the 1956 frost devastated plantings, though it survives as the dominant grape of Cahors, where it is called Côt and produces dark, tannic wines known locally as 'black wine'. Cuttings taken to Argentina in the nineteenth century found ideal conditions at altitude in Mendoza, where the grape became the country's calling card.
Malvasia
white · Mediterranean (family of grapes)
The name Malvasia covers a large and only loosely related family of grapes dispersed across the Mediterranean by medieval Venetian trade routes, tracing back to the port town of Monemvasia in the Peloponnese. Depending on the biotype and region, it can produce crisp dry wines such as Malvasia Istriana, aromatic table wines, or richly sweet passito styles in Italy, Iberia and the Canary Islands.
Marsanne
white · Northern Rhône, France
Typically partnered with the more aromatic Roussanne, Marsanne contributes body, low acidity and a distinctive almond and honeysuckle character to the white wines of the northern Rhône, most notably the age-worthy Hermitage Blanc produced on the granite hill above Tain-l'Hermitage. It is also grown with success in Australia's Victoria, where old vines at Tahbilk have produced Marsanne continuously since the nineteenth century.
Marselan
red · Southern France (Cabernet Sauvignon × Grenache)
Bred in 1961 by French ampelographer Paul Truel at a research station near the town of Marseillan, this crossing of Cabernet Sauvignon and Grenache was designed to combine structure with heat tolerance and resistance to coulure. It has become a fixture of Languedoc blends and, more recently, of Chinese vineyards in Shandong and Ningxia, where it produces deeply coloured, dark-fruited wines with supple tannin.
Melon de Bourgogne
white · Loire, France (Muscadet)
Transplanted from Burgundy to the mouth of the Loire in the seventeenth century after severe frosts devastated local vineyards, Melon de Bourgogne became the sole permitted grape of Muscadet Sèvre-et-Maine. Its naturally neutral, saline character is traditionally deepened by sur lie ageing, in which the wine rests on spent yeast lees through the winter, adding texture without masking its coastal freshness.
Mencía
red · Northwest Spain (Bierzo, Ribeira Sacra)
also known as Jaen
Long overlooked and often blended away, Mencía has been reassessed over the past two decades as growers in Bierzo and the terraced slopes of Ribeira Sacra began isolating old vines planted on slate and granite. The resulting wines show floral perfume, pure red fruit and a mineral edge that has drawn comparisons, not always fairly, to cool-climate Cabernet Franc.
Merlot
red · Bordeaux, France
Genetically a natural offspring of Cabernet Franc, Merlot ripens earlier and carries softer tannin than its Bordeaux counterpart, qualities that made it especially suited to the clay-limestone soils of Pomerol and St-Émilion, home to estates such as Pétrus. Beyond Bordeaux, where it softens Left Bank Cabernet blends, it has become one of the most widely planted red grapes globally in its own right.
Monastrell
red · Spain (Levante) / Southern France
also known as Mourvèdre, Mataró
A grape that demands heat and sun to ripen fully, Monastrell reaches particular distinction in Bandol on the Provençal coast, where limestone-clay soils and a warm microclimate allow it to build tannin, dark fruit and a gamey, animal edge over extended barrel ageing. In Spain, as Monastrell, it forms the backbone of Jumilla and Yecla and features in many GSM blends worldwide.
Montepulciano
red · Central Italy (Abruzzo)
Frequently confused with the Tuscan hill town of the same name, which in fact grows Sangiovese, this grape is native to Abruzzo along Italy's Adriatic coast. Montepulciano d'Abruzzo delivers deep colour, soft tannin and generous dark-fruit character at accessible prices, though the more structured Colline Teramane subzone shows the variety's capacity for greater seriousness.
Moschofilero
white · Peloponnese, Greece (Mantinia)
A pink-skinned member of the broad Muscat-adjacent family, Moschofilero is grown on the cool, elevated plateau of Mantinia in the central Peloponnese, where altitude preserves the acidity needed to balance its exuberant rose-petal and citrus perfume. It is vinified both as a still white and, increasingly, as a lightly sparkling wine.
Müller-Thurgau
white · Switzerland (Riesling × Madeleine Royale)
Bred in 1882 by Swiss botanist Hermann Müller, a native of the canton of Thurgau, this crossing of Riesling and Madeleine Royale was intended to combine early ripening with reliable yields, and it later became the dominant grape behind much of Germany's mass-market Liebfraumilch. Grown with more care, particularly at altitude in Alto Adige or in Franken, it can yield genuinely aromatic, well-balanced wines.
Muscat
white · Mediterranean (ancient)
also known as Moscato, Muscat Blanc à Petits Grains, Muscat of Alexandria
One of the oldest domesticated grape families, tracing back to antiquity around the Mediterranean, Muscat exists in numerous distinct biotypes rather than as a single variety, the finest generally considered to be Muscat Blanc à Petits Grains. Its grapey, orange-blossom aromatics translate across dry Alsace bottlings, lightly sparkling Moscato d'Asti in Piedmont, and a wide range of fortified sweet wines from Rutherglen to Samos.