Bordeaux Flashcards
Where is the wine region of Bordeaux?
- SW France, close to Atlantic
- Traversed by rivers Garonne and Dordogne which merge = Gironde estuary
- west of rivers = Left Bank
- east of rivers = Right Bank
- in between two rivers = Entre-Deux-Mers
The six main grapes planted in Bordeaux and percentage of total (2017)
- merlot 60%
- cabernet sauvignon 20%
- cabernet franc 7%
- semillon 5%
- sauvignon blanc 5%
- muscadelle 1%
- other reds 2%
Key historical developments in Bordeaux
- City long a trading centre for other regions’ wines eg Bergerac - so today’s specialised merchants (not owners) evolved from then - (Britain, Ireland, Germany, Holland)
- 17-18C Dutch drained/planted marsh in Medoc N of city
- by mid 18thC Lafite, Margaux names in Europe & US
- 1855 Exposition Universelle de Paris prompted Bordeaux chamber of commerce to classify wines based on price
- Medoc estates (+Haut Brion) 5 bands
- Sauternes 3 bands
- remains today
Vineyard area of Bordeaux and general prices
- 111,000 ha (ie enormous) but eg
- Pomerol only 800 ha
- 70% inexpensive-mid Bordeaux/ Bordeaux Supérieur appellations
- only 3% are premium/ super premium
How does the climate in Bordeaux help produce remarkably long lived wines?
- moderately maritime (cooling Atlantic to west)
- moderation of Gironde estuary against frost/heat
- in great vintages
- gentle heat in growing season
- sufficient rain for growth/ripening
- fine, dry warm early autumns
- creates a balance of tannins, sugar, acidity and very long lived wines
Differences in climate of Left and Right Banks of Bordeaux
- Middle Left Bank protected from Atlantic by Landes pine forest
- north Medoc and south - Léognan and Listrac - less forest, so cooler
- Right Bank (east) further from Atlantic - Libournais (St Emilion, Pomerol and surround) less affected
- Vineyards close to Gironde estuary less frost affected
Main climate risks of Bordeaux and examples of effect on yields
-
rain - average 950mm pa, but heavy/ drought
- at flowering - poor fruit set, at growing - disease at/post veraison - unripe, disease, at harvest dilutes
-
drought (climate change)
- hardy grapes (resistant) but 2003 v ripe, low acid, high alcohol as wait for phenolic ripeness
-
frost - decimated 1956, 1991, 2017
- 2017 33% less than 10 yr av and 40% less than 2016
- hail (climate change) - more destructive & widespread
What are croupes?
Mounds of gravel on which the top estates of the Left Bank of Bordeaux are planted. The highest are in Margaux at 32m
Describe the soils in the Left Bank of Bordeaux
- Gravel and stone (and clay, sand & minerals) of floodwaters of Pyrenees/ Massif Central 1000s yrs ago
- Gravel mounds (croupes) under all Left Bank chateaux
- Gravel drains well, unlike clay (important after frequent showers/storms) so roots dry out/ grapes ripen.
- In v hot years (2003/05) can cause drought stress,
- Gravel retains heat (slow release over night)
- Some clay in St Estephe, but wines less acclaimed
Describe the soils of the Right Bank of Bordeaux
- Clay (and limestone) - which is why dominant grape is merlot
- Merlot ripens fully almost always, more sugar/ alcohol than Cab-Sav/ Franc - used to be a benefit
- Where soil shallow (eg Pomerol clay only 1 m deep), vines can suffer from drought eg in 2018)
- Some gravel esp in bits of Libournais
- The best wines come from vines on the limestone plateau or gravel section bordering Pomerol
The flavour profile of Merlot in Bordeaux
- Medium to pronounced intensity fruit
- strawberry/ red plum and herbaceous in cool
- cooked blackberry, black plum in hot years
- medium tannins
- med to high alcohol
Why does merlot dominate the Right Bank and the cooler northern Medoc?
- Can ripen on the cooler, more fertile clay soils
- Water-retention of clay enables large berry
- Can ripen fully in cool years (unlike Cab Sav)
- Higher sugar levels and alcohol than either Cab
- though less an advantage in climate change
The pros and cons of growing merlot in Bordeaux
- CON Early budding - spring frosts but
- PRO (mid) ripens before autumn rain
- CON Coulure/ drought/botrytis bunch rot (need sorting - reduces yields)
- PRO Ripens fully in cooler years/ on clay soils of Right Bank/ N Medoc
- PRO Clay retains water - bigger berry
- PRO Higher sugar/ potential alcohol - but CON less of advantage now climate change
The percentage of grape plantings and wine produced by colour in Bordeaux
- nearly 90% plantings are black grapes
- 85% AOC wines produced are red
- 10% dry white
- 4% rosé
- 1% sweet white
The pros and cons of Cabernet Sauvignon viticulturally in Bordeaux
- PRO: Late-budding (miss spring frosts)
- CON: prone to fungal disease, esp powdery mildew and trunk diseases Eutypa & Esca
- CON: Ripens late (needs warmer soils/ Autumn rain)
- CON: can struggle to ripen in cooler vintage - high acidity, unripe tannins, little fruit
- Best quality on warm, well-drained, gravel beds of Médoc
Flavour profile of Cabernet-Sauvignon in Bordeaux
- Pronounced violets, blackcurrant, black cherry, menthol or herbaceous flavours
- medium alcohol
- high acid
- high tannins