2 - Bordeaux Flashcards
Name the main rivers in the region
River Garonne + River Dordogne = Gironde Estuary
What are the seven most planted grapes and give the % of ha planted for each
- Merlot 60%*
- Cabernet Sauvignon 20%*
- Cabernet Franc 7%*
- Other Black grapes (combined) >5%*
- Semillon 5%*
- Sauvignon Blanc 5%*
- Muscadelle >5%*
Outline major historical developments in the region’s history (3)
c17/18th - Medoc peninsula drained by Dutch merchants
1855 - formal classification of left bank properties
Outline how the 1855 classification was established (3)
Bordeaux chamber of commerce asks merchants to rank estates
Estates of Medoc, Graves + Sauternes placed into bands - 5 for Medoc + Graves, 3 for Sauternes
They did so based on price
Roughly breakdown the distribution of price brackets (2)
Inexp - mid-priced = 70%
Prem - super-prem = 30%
Describe the climate of Bordeaux and how it is changing (5)
- Mod maritime
- Atlantic → cooling influence + rainfall
- Rainfall ave 950m → but varies
- Rivers provide a mod influence on temp → frost
- Climate change has brought hotter, drier summers with low rainfall
Explain why the climate of Bordeaux varies between sub-regions
- Medoc → protected from Atlantic by Landes
- Graves, Listrac → less protected by Landes → cooler
Describe the weather conditions that characterise the best vintages in Bordeaux (4)
- Gentle heat throughout growing season → ripening
- Sufficient rainfall → growth + ripening
- Relatively dry + warm autumn → final ripening
- No excessive rain during flowering/veraison → fruit set + ripeness
How can excessive rainfall contribute to vintage variation? (4)
- Flowering → fruit set
- Growing season → disease pressure
- Veraison → ripeness, disease
- Harvest → flavours, disease
Explain how climate change has impacted Bordeaux (3)
Example x1
Hot summers with insufficient rainfall
Ripening speeds → acidity + alcohol → balance
- E.g. 2003
Outline the main climatic hazards and the impact they have in terms of yield/quality (4)
- Untimely + excessive rainfall
- Hot / dry summers
- Frost → yield
- Best sites in Medoc are protected by mod influence of Gironde
- 2017 saw 1/3 reduction of 10-yr ave
- → financial implications
- Hail → yield (+ quality via fungal disease)
Describe the soils and how they impact grape growing
- Gravel (5)
- Clay (3)
Gravel - mainly Medoc/Graves
- Draining → wet climate → ripening
- Hotter years → drought-stressed → shallow soils of Pomerol
- Retains heat → absorbs + gradually releases warmth after a hot day → rip speed
- Ideal for rip Cabernet Sauvignon
- Patches near Pomerol
Clay - Right Bank/Libournais
- Less well-drained, cooler, fertile
- Ideal for rip Merlot
- Pockets in Saint Estephe
Describe characteristics of Merlot:
- Budding + ripening
- Vulnerabilities
- Favoured soils
- Ideal vintage conditions
- Flavour characteristics
- Structural characteristics
- Early bud + mid-rip → frost, autumn rain
- Coulure, drought, botrytis → yields, sorting
- Clay soils → temp, berry size
- cooler vintages, fast sugar acc → warmer years
- Med-pronounced strawberry, plum, herbac (cooler years), cooked blackberry(warmer years)
- Med tannin + med-high alcohol
Describe characteristics of Cabernet Sauvignon incl the following:
- Budding and ripening
- Vulnerabilities
- Favoured soils
- Ideal vintage conditions
- Flavour characteristics
- Structural characteristics
- Late bud/rip → frost, req warmth, autumn rain
- fungal diseases → Eutypa/Esca
- warm + well drained soil → ripening
- Warmer vintages → tannin rip + balanced acid
- Violet, black fruit, herbal, herbaceous
- Med alcohol, high acid + high tannin (small berries)
Describe characteristics of Cabernet Franc incl the following:
- Budding and ripening
- Vulnerabilities
- Flavour characteristics
- Structural characteristics
- Early bud → frost
- Mid rip → autumn rains
- coulure
- Red fruit, leafy if picked early or canopy dense
- High acid, medium tannin
Describe characteristics of Malbec incl the following:
- Vulnerabilities
- Flavour characteristics
- Structural characteristics
When was it largely replaced, with what and why?
- Vigorousness, coulure
- Violet, plums
- Med acidity, med(+)-high tannin
- Mainly replaced by Merlot after 1956 frost - easier to grow
Describe characteristics of Petit Verdot incl the following:
- Budding and ripening
- Vulnerabilities
- Ideal site / vintage conditions
- Flavour characteristics
- Structural characteristics
How is it used in blends?
Why may plantings increase?
- Early bud, late rip → frost, tricky to rip in cool years, autumn rain
- Best in warmer areas / vintages
- Spice notes
- Deep colour + high tannin
Usually <5% as to add colour + tannin
climate change mean it can be reliably ripened
Describe characteristics of Semillon incl the following:
- Ripening
- Vulnerabilities
- Yield
- Flavour characteristics
- Structural characteristics
How is it used in blends?
- Mid-rip
- botrytis
- High yields
- Light intensity, apple, lemon, grass (if underripe)
- affinity with oak
- vanilla, sweet spice → toast/honey with age
- Med(+) acid, med alcohol, med body
Blends
- Dry whites → softens S.B’s high acid + intense flavour
- Sweet → susceptible to botrytis, adds honey, waxy texture
Describe characteristics of Savuignon Blanc incl the following:
- Ripening
- Vulnerabilities
- Yield
- Flavour characteristics
- Structural characteristics
Increasingly, how is it being used in blends and why?
- Late bud, early rip → frost, autumn rain
- vigourousness (canopy mngt, soils), botrytis, Esca + Eutypa dieback (if cordon trained)
- Grass, gooseberry
- High acid, med alcohol, med body
Dominant/single variety dry wines due to popularity
Describe the characteristics of Muscadelle including:
- Vulnerabilities
- Flavour characteristics
- Which wines it is usually used in
- Vulnerable to botrytis - well-exposed site
- Flower + grape
- Used in sweet wines with Semillon and Sav B
What are the typical vineyard densities seen in Bordeaux and why? What are the cost implications?
HQ - 10,000 VPH
- Infertile soils → vigour → canopy density limited
- Higher costs:
- more vines purchased
- trellising
- specialist tractors
- more time for training, ploughing, spraying
- BUT best use of £££ land
Lower Q Bordeaux AOC → 3000-4000 VPH
How are vines trained, pruned and trellised? (2)
1. Head trained, RCP
- Left Bank - Double Guyot
- Right Bank - Single Guyot
2. Cordon trained, spur pruned
- Rare but used by prestigious estates –> reduces yield, bunch aeration
What role does canopy management have to play in improving yields and quality? (3)
Fungal disease pressure - damp climate
- Summer leaf removal → aeration → mildews + botrytis
- Sunlight interception → rip
- Reduces need for sprays → rainfall make difficult for tractors to enter vineyards, washes off sprays
Why may removing leaves be risky? How can this risk be mitigated?
Increases vulnerability to sunburn and heat - e.g. 2003 → raisins
Remove leaves later in season after hottest months have passed