2.1 Bordeaux (with Sud-Ouest Scope Note)
Key Takeaways
- Bordeaux features a maritime climate moderated by the Atlantic Ocean, Gironde Estuary, and Landes Forest pine buffer.
- The Left Bank is Cabernet Sauvignon-dominant on gravel soils, while the Right Bank is Merlot-dominant on clay and limestone.
- The 1855 Classification categorized 61 Médoc red châteaux into five First-through-Fifth Growth tiers, with Château Mouton Rothschild elevated in 1973.
- Sauternes AOC relies on morning fog and afternoon sun to induce Botrytis cinerea (Noble Rot) for world-class sweet Sémillon-based wines.
- South West France features distinct native varieties including Malbec in Cahors AOC, Tannat in Madiran AOC, and Petit Manseng in Jurançon AOC.
Bordeaux & South West France
Introduction to Bordeaux
Located in southwestern France along the Atlantic coast, Bordeaux is one of the world's most renowned fine wine regions. With over 110,000 hectares of vineyards, it is France's largest fine wine producing area by volume. The region's geography is fundamentally defined by three water bodies: the Gironde Estuary and its two feeding rivers, the Garonne (flowing from the south) and the Dordogne (flowing from the east). These waterways bisect the region into three primary zones: the Left Bank (west of the Garonne and Gironde), the Right Bank (north and east of the Dordogne and Gironde), and the central wedge between the rivers known as Entre-Deux-Mers ("Between Two Waters").
Climate & Terroir
Bordeaux experiences a maritime climate strongly influenced by the Gulf Stream, which brings warm water from the Caribbean and moderates seasonal temperatures. Humidity is high, and rainfall can occur throughout the growing season, making vintage variation a major factor. The region is protected from harsh Atlantic winds and salt spray by the Landes Forest, a vast pine forest stretching along the western coast. Soil composition varies dramatically across the region and dictates grape planting choices:
- Gravel Soils: Found predominantly on the Left Bank. Deep gravel beds absorb daytime solar heat and radiate it back to the vines at night, aiding the ripening of late-ripening grape varieties.
- Clay & Limestone Soils: Found predominantly on the Right Bank. Cool, moisture-retentive clay soils delay budbreak and provide ideal conditions for early-ripening varieties.
Principal Grape Varieties
Bordeaux wines are almost exclusively blends, a viticultural strategy developed to mitigate risk against variable maritime weather.
| Category | Primary Varieties | Minor / Permitted Varieties |
|---|---|---|
| Red Grapes | Cabernet Sauvignon, Merlot, Cabernet Franc | Petit Verdot, Malbec, Carmenère |
| White Grapes | Sauvignon Blanc, Sémillon | Muscadelle |
Red Grape Profiles
- Cabernet Sauvignon: Thick-skinned, late-ripening, high in tannin and acidity. Adds structure, ageability, and signature notes of cassis (blackcurrant), cedar, pencil lead, and tobacco. Dominates Left Bank blends.
- Merlot: Early-ripening, thinner-skinned, higher in alcohol and lower in tannin. Provides plush texture, mid-palate flesh, and aromas of plum, black cherry, and cocoa. Dominates Right Bank blends.
- Cabernet Franc: Ripens earlier than Cabernet Sauvignon. Contributes aromatic finesse, vibrant acidity, and notes of red fruit, violet, and graphite.
White Grape Profiles
- Sauvignon Blanc: High acidity, crisp citrus, gooseberry, and herbal aromatics. Provides freshness and drive.
- Sémillon: Thin-skinned and susceptible to noble rot. Adds body, weight, waxy texture, and honeyed notes. Core variety for sweet botrytized wines and rich dry whites.
The Left Bank: Médoc & Graves
The Left Bank is situated south and west of the Gironde Estuary and Garonne River. It encompasses the Médoc peninsula to the north of Bordeaux city and the Graves region to the south.
[Gironde Estuary]
|
+-------------------------+-------------------------+
| |
[LEFT BANK] [RIGHT BANK]
- Médoc (Saint-Estèphe, Pauillac, - Pomerol
Saint-Julien, Margaux) - Saint-Émilion
- Pessac-Léognan & Graves - Fronsac
- Sauternes & Barsac
The Communal Appellations of the Haut-Médoc
The Haut-Médoc AOC contains six celebrated communal appellations, listed from north to south:
- Saint-Estèphe AOC: Northernmost commune; higher clay content in soil yields structured, rustic, high-tannin reds that require extended aging.
- Pauillac AOC: Considered the quintessential expression of Cabernet Sauvignon. Features deep gravel banks. Famous for aromas of cassis, cedar, and cigar box. Home to three First Growths.
- Saint-Julien AOC: Smallest of the major communes but highly consistent. Produces elegant, balanced reds bridging the power of Pauillac and the finesse of Margaux.
- Margaux AOC: Southernmost communal AOC; thin, gravelly soils. Produces highly perfumed, floral (violet), silky-textured wines. Home to Château Margaux.
- Listrac-Médoc AOC & Moulis-en-Médoc AOC: Inland communes producing sturdy, value-driven Cabernet blends.
Pessac-Léognan AOC & Graves AOC
Located south of the city of Bordeaux, Graves AOC is the historic birthplace of Bordeaux wine. In 1987, the northern, high-quality portion was granted its own appellation: Pessac-Léognan AOC. The region features gravel mixed with sand and clay, producing exceptional dry reds and world-class barrel-fermented dry whites (Sauvignon Blanc & Sémillon blends).
Classifications of Bordeaux
Unlike Burgundy, where vineyards are classified, Bordeaux classifies individual châteaux (producers/estates).
The 1855 Classification of the Médoc & Sauternes
Commissioned by Emperor Napoleon III for the Paris Universal Exhibition, brokers classified the top red wines of the Médoc (plus one estate from Graves) into five tiers: Premier Cru (First Growth) through Cinquième Cru (Fifth Growth).
The Five Red First Growths (Premiers Crus)
- Château Lafite Rothschild (Pauillac)
- Château Latour (Pauillac)
- Château Margaux (Margaux)
- Château Haut-Brion (Pessac-Léognan / Graves)
- Château Mouton Rothschild (Pauillac — elevated from Second Growth in 1973)
Sauternes & Barsac 1855 Classification
Sweet wines were classified alongside the Médoc in 1855 into Premier Cru Supérieur, Premier Cru, and Deuxième Cru. Château d'Yquem was awarded the singular title of Premier Cru Supérieur.
Other Bordeaux Classifications
- Graves Classification (1953/1959): Classifies estates in Pessac-Léognan for red and/or white wines without numerical ranking.
- Saint-Émilion Classification (1955): Re-evaluated approximately every ten years. Tiers include Premier Grand Cru Classé A, Premier Grand Cru Classé B, and Grand Cru Classé.
- Cru Bourgeois: Quality designation for Médoc estates not included in the 1855 Classification.
The Right Bank: Libournais
The Right Bank centers around the town of Libourne along the Dordogne River. The cool clay and limestone soils favor Merlot and Cabernet Franc.
Saint-Émilion AOC & Saint-Émilion Grand Cru AOC
Saint-Émilion features a plateau of limestone and clay-limestone slopes. Wines are rich, plush, and structured, dominated by Merlot backed by Cabernet Franc. Only wines fulfilling stricter yield and aging rules earn the Saint-Émilion Grand Cru AOC designation.
Pomerol AOC
Pomerol is a tiny, highly prestigious appellation known for its unclassified estates. The soil features a unique layer of blue clay (crasse de fer or iron-rich clay) that produces ultra-opulent, concentrated Merlot. World-famous estates include Château Pétrus and Château Le Pin.
Sweet Botrytized Wines: Sauternes & Barsac
Located at the southern end of the Left Bank, Sauternes AOC and Barsac AOC produce famous botrytized sweet wines. Cold waters from the Ciron River meet the warmer Garonne River, creating morning fogs followed by warm, sunny afternoons. This microclimate promotes Botrytis cinerea (Noble Rot).
- Mechanism: The fungus pierces grape skins, evaporating water and concentrating sugars, acids, and flavors without spoiling the fruit.
- Flavor Profile: Honey, dried apricot, orange marmalade, saffron, and beeswax balanced by vibrant acidity.
- Grapes: Predominantly Sémillon blended with Sauvignon Blanc and Muscadelle.
South West France (Sud-Ouest) — Certified Scope Note
Detailed South of France / Sud-Ouest appellations (e.g., Madiran, Cahors, Jurançon, Provence, Languedoc-Roussillon) are emphasized at Certified level in the CMS-A curriculum guide. Introductory candidates should master Bordeaux (Left Bank, Right Bank, Sauternes/Barsac) first; treat Sud-Ouest names as enrichment only unless they appear in your current workbook edition.
Which of the following grape varieties dominates red wine blends produced on the Left Bank of Bordeaux due to the presence of gravel soils?
Which Right Bank Bordeaux appellation is famous for its blue clay soils (crasse de fer) and world-renowned Merlot-based wines despite having no official classification system?
In South West France, Cahors AOC is famous for producing deeply colored, tannic red wines that must contain a minimum of 70% of which grape variety?