Merlot

Merlot is the most widely planted grape in Bordeaux. It's also one of the most flexible black grapes in the world, capable of producing light, fruity wines intended for immediate drinking or pronounced, concentrated wines that improve with oak and bottle ageing. In a blend, Merlot does the softening work - it lowers tannin levels and adds red-fruit flavours to heavier grapes like Cabernet Sauvignon.

The grape

Merlot is a black grape that grows in moderate and warm climates. A single-varietal Merlot is typically dry, medium acidity, medium tannins. Flavours shift with ripeness:

• Just-ripe: light to medium body. Red-fruit flavours (strawberry, red plum) and herbaceous notes (green bell pepper/capsicum).
• Riper: medium to full body. Cooked-black-fruit flavours (blackberry, black plum). Easily achieved in a warm climate or by harvesting later in a moderate one.

Winemaking and maturation

Merlot is capable of outstanding single-varietal wines but is often blended with higher-tannin varieties like Cabernet Sauvignon. Merlot adds red-fruit flavours and lowers tannin levels in a blend, making the wine ready to drink earlier.

Both oaked and unoaked styles are made. Lighter Merlot doesn't need extended barrel maturation; fuller styles benefit from the softness and complexity oak provides. The best Merlot-dominated wines are age-worthy, developing dried fruit and tobacco over time.

France: Bordeaux

Bordeaux, in south-west France, is the classic home of Merlot. Moderate climate with high rainfall from the Atlantic. Wines are typically blends of Merlot and Cabernet Sauvignon, where the proportions depend on style, soil type, and annual weather.

The region is split by the Gironde Estuary (where the Garonne and Dordogne rivers meet) into two halves:

Left Bank

West and south of the Gironde/Garonne. Districts: Médoc, Graves, Sauternes. Cabernet Sauvignon usually dominates the blend but Merlot is typically included.

Right Bank

North and east of the Gironde and Dordogne. Districts: Saint-Émilion and Pomerol. Merlot is the most important variety here.

Key appellations at Level 2:

Bordeaux AOC and Bordeaux Supérieur AOC

Regional appellations. Grapes can be grown anywhere in Bordeaux. Typically Merlot-dominated blends. Bordeaux Supérieur AOC has slightly stricter rules on yields, ageing, and minimum alcohol.

Saint-Émilion AOC and Pomerol AOC

The most important Right Bank appellations. Saint-Émilion AOC includes the more prestigious Saint-Émilion Grand Cru AOC. Outstanding examples are full-bodied with pronounced black-fruit aromas and flavours from oak maturation. Age well in bottle, developing dried fruit and tobacco.

In the South of France, Merlot is widely planted and produces single-varietal wines across all quality levels as well as blends with other black grapes (Cabernet Sauvignon, Grenache, Syrah).

Bordeaux labelling terms

Château

Does not refer to a grand building - it's the name for an estate or producer. "Château" on the label indicates the wine is made from grapes grown on that producer's land rather than bought in.

Grand Cru Classé / Cru Classé

Some Bordeaux sub-regions have drawn up classifications ranking the best châteaux. Widely considered a strong quality indicator. Typically the most expensive and sought-after wines; can mature for many years or decades.

Cru Bourgeois

Médoc-specific: wines not classified as Grand Cru Classé can apply to use this term. Typically priced below the Grand Cru Classé châteaux but some can be very good to outstanding with long ageing potential.

USA

California produces Merlot-based wines across all styles and quality levels. Blends with other black grapes are common, but single-varietal Merlot is also important. Styles range from fruity, medium-bodied "California"-labelled wines through to concentrated, full-bodied Merlot from Napa Valley and Sonoma. Pronounced oak flavours (vanilla, coconut, smoke) are common in Californian reds; very good or outstanding wines are often aged in new barrels while high-volume producers may use chips or staves.

Chile, South Africa, Australia, New Zealand

Chile, Central Valley

Warm and dry. High yields of fully ripe Merlot are achievable every year. Important source of soft, medium-bodied Merlot for high-volume brands. Altitude-moderated sites can produce fresher styles.

South Africa, Stellenbosch

Mountainous region with climate varying from moderate to warm depending on altitude and sea breezes. Strong reputation for complex, age-worthy reds from classic Bordeaux varieties.

Australia, Margaret River

Merlot has traditionally been part of a Cabernet Sauvignon blend in many high-quality Margaret River wines.

New Zealand, Hawke's Bay

Most New Zealand Merlot comes from here. Moderate climate with plentiful rainfall. Styles range from light and fruity to full-bodied and long-lived. Found as single-varietal or blended with Cabernet Sauvignon.

Next up: Cabernet Sauvignon, Merlot's blending partner on the Left Bank.