France - Bordeaux Flashcards
Quick overview: location, overall planting statistics and AOC wine production
- Southwestern France
- Traversed by the Garonne and Dordogne, which merge to form the Gironde estuary.
- Black grapes represent 90% of total plantings
- Production of AOC wines: 85% red, 10% white, 4% rose and 1% sweet.
Three key historical factors
- late 17th, early 18th centuries: the dutch drained the marshland of Medoc
- by mid 18th Century, wines of Medoc (such as Margaux and Lafite) were well regarded internationally.
- this success lead to the emergence of brokers and courtiers, creating a system called La Place de Bordeaux (still in place today).
- 1855 Classification: created by the brokers for the Exposition Universelle de Paris, classifying the best producers of Medoc + Haut Brion (Graves) in 5 growths and Sauternes into 3.
- This classification remains almost unchanged today, with the exception of Mutton - Rothschild, which was added in the 1970’s.
Overall climate in the Left Bank
- Moderate maritime climate (cooling influence from the Atlantice to the west)
- Best years: gentle heat throughouth the growing season, sufficient rainfall to promote growth / ripening and fine, relatively dry and warm autumns.
- Partially protected form the Atlantic by the Landes forest
- 3 slightly different mesoclimates:
a) Northern Medoc: less forest protection, more exposed to the atlantic, cooler climate
b) Eastern Medoc: closer to the Landes forest, cooler climate
c) Southern Medoc & Graves: better protected from the Atlantc, warmer climate.
Overall climate - Right Bank
- Moderate maritime climate
- Martime influence is less pronounced here
- Best sites are located near the Gironde / Dordogne (frost protection)
Overall challenges caused by climate (rainfall, heat, frost and hail)
- Rainfall: variable, marked variation from year to year; excessive rainfall can cause issues:
a) rat flowering: poor fruit set
b) throughout the season: increased disease pressure
c) following veraison: unripe fruit & fungal diseases
d) harvest: dilute flavour, risk of botrytis. - climate change: excessive heat can lead to wines being more alcoholic, less acidity and lacking in balance.
- Frost: can be an issue from time to time; best sites in the Medoc are located close to the Gironde (moderating influence); sites located a mile or two to the West can be devasted.
- Hail (once sporadic) has been more widespread.
Soil types and their influence on vinegrowing
- in Medoc & Graves: deposits of gravel and stony soils carried to the region by floodwaters from the Pyrenees and Massif Centrale thousands of years ago.
- Deposits formed gravel mounds, never very high (up to 32 m ASL);
- Depending on the origin, the gravel is mixed with clay and sand.
- Very well drained, which is helpful: the region is prone to showers and storms; in extremely hot years, this can be an issue: drought stress.
- Heat retention: pebbles and stones will absorb heat during the day, releasing it back to the vineyard at night.
- There are also pockets of clay, especially in Saint-Estephe
Soil type and variatons
- far more clay content in the soil here
- patches of gravel can also be found here
- best wines come from vineyards planted on the limestone plateau or the gravel section that borders Pomerol, aka, combination of clay / limestone or clay / gravel.
Budding & ripening, advantages, disadvantages and flavour characteristics
- early budding / mid ripening
- advantages: can ripe fully and be harvested before the autumn rain; can ripen fully in cooler years; water-holding capacity of clay enables it to produce the large berry size typical of this variety.
- disadvantage: early budding = vulnerable to spring frosts; susceptible to coulure, drought and botrytis bunch rot; in hot years can reach higher potential alc level they either of the Cabernets.
- med to pronounced intensity fruit; cooler years: stawberry, red plum, herbaceous notes; warmer years: black plum, cooked blackberry in warmer years; med tannins and med to high alcohol.
Budding & ripening, advantages, disadvantages and flavour characteristics
- late budding / late ripening
- advantages: less exposed to spring frosts (late budding), produces high-quality, long-lived wines (in the right soil / mesoclimate); brings structural elements to a blend (tannins, acidity and alcohol).
- disadvantages: prone to fungal diseases (powdery mildew); prone to trunk diseases (Eutypa and Esca); vulnerable to autumn rains; in cooler years: struggles to ripen (high acid, unripe tannins, little fuitness and herbaceous tones).
- pronounced intensity: violet, blackcurrant, black cherry, menthol or herbaceous aromas, med alc, high acid and tannins.
Budding & ripening, advantages, disadvantages and flavour characteristics
- early budding / mid ripening
- advantages: can be harvested before autumn rains; it’s winter hardy.
- disadvantages: prone to coulure; it’s very vigorous (dense canopy); if unripe, can taste excessively leafy.
- med to pronounced intensity; red fruit (redcurrant, raspberry), floral (violet) and can have leafy aromas; high acid, medium tannnins, medium body, medium alcohol.
Budding & ripening, advantages, disadvantages and flavour characteristics
- early budding / mid ripening.
- advantages: can be harvested before autuumn rain; afinity to oak maturation and can produce wines with relatively long agebility.
- disadvantages: vulnerable to coulure and early spring frosts, susceptible to fungal diseases (mildews) in more humid climates; vigorous.
- medium to pronounced intensity, violet, red and black plum, medium to medium (+) acidity, medium (+) to high tannins.
Budding & ripening, advantages, disadvantages and flavour characteristics
- early budding / late ripening
- advantages: resistant to rot, ‘seasoning’ to the Bordeaux blend due to its powerfully aromatic and structural contribuition.
- disadvantages: prone to spring frosts; fails to ripen in cool years and susceptible to rain around harvest.
- deep coloured, tannic and spicy notes, med (+) to high alc, med - med (+) acitiy.
Budding & ripening, advantages, disadvantages and flavour characteristics
- early budding / mid ripening
- advantages: susceptible to noble rot (in the right conditions); less vulnerable to spring frosts, to rain during harvest and it’s not disease prone; afinity with oak.
- disadvantage: grey rot (in the wrong conditions); vigorous; not very aromatic.
- low intensity of apple, lemon; in botrytis affected grapes, honey and dried fruit (lemon, peach); waxy texture; vanilla and sweet spices from oak; develops honeyed and toast notes with age.
Budding & ripening, advantages, disadvantages and flavour characteristics
- late budding / early ripening
- advantages: can ripen in cool climates / region; less affected by early spring frosts; can be harvested before autuumn rain; blends well with Semillon and Muscadelle (Bordeaux); prone to noble rot (in the right conditions).
- disadvantages: very vigorous; prone to powdery mildew, botrytis bunch rot; prone to trunk diseases (Esca); prone to green pepper, grassy notes if unripe.
- pronounced intensity; cooler areas / vintages: herbaceous, grass, bell pepper, asparagus, gooseberry, grapefruit and wet stone; warmer areas: tropical (passion fruit).
Planting density (pro & con); training in pruning (Left x Righ Banks); canopy management; pests & diseases management; harvesting (green-harvest).
- top vineyards: high density, with vines planted 1x1m; making better use of expensive land.
- close planting adds to the cost: more plants and more trellising, specialist over-the-row tractors, more time for vine training, ploughing and spraying.
- vineyards in less prestigious appellations use lower density planting.
- Left Bank: double Guyot training is more common (head-trained, replacement cane-pruned).
- Right Bank: single Guyot is more common.
- Canopy management: in this moderate, damp climate, it’s very important to reduced athe risk of mildews and botrytis bunch rot; leaf removal (improve aeration, deter rot and expose the fruit to UV light).
- Eutypa dieback and Esca have become major problems; countered by soft pruning.
- Flavescence doree (caused by leafhoppers) can be contained by the use of insecticides (not suitable for organic / biodynamic production).
- Bunch-thining (green harvest): used to be popular 20 years ago; not so much now - it can unbalance the vine; pruning short in winter can solve the problem.
- Harvest: manual harvest for the bigger estates by large teams; smaller estates will harvest by machine due to their distance from Bordeaux city and for financial reasons.
Grape sorting and vinification overview
- levels of sorting vary according to the value of wine / vintage
- inexpensive wines: grapes not routinely sorted.
- high quality wines: first sorted at harvest by hand whilest harvesting or on a moving / vibrating belt or by optical sorting.
- high quality wines: plot by plot harvesting (optimal ripeness) and vinifying them separetely.
- this requires more vessels in the winery, adding to the cost.
Fermentation (cap management, temps and maceration times)
Free run x press wine
Ageing (simple x top wines)
Blending (2 different approaches)
- fermentation in closed vats, with pump-overs.
- early drinking wines: mid-range fermentation temp, short post-fermentation maceration (5-7days) = preserve primary aromas / extract less tannins.
- wines for ageing: mid-range to warm temp, longer maceration (14-30 days); maceration times are reduced in poor vintages / not fully ripe grapes.
- free-run & press wines are aged separately in 225 L barrels.
- Malo conversation takes place in barrels; top estates will inoculate to ensure quick completion before en primeur.
- simple wines: aged in neutral vessels (stainless steel, concrete or large vats; oak chips may be added.
- premium wines are aged in French oak, with a mix of new and 1yo; top estates may use up to 100 NFO; 18-24 months
- 1st approach to blending: done over winter for 2 reasons; a) to be ready for en primeur; b) to deselect the wines for 2nd and 3rd labels.
- 2nd approach to blending: done before bottling to assess how the different varieties evolved.
Styles, varieties and methods
- 2 styes: traditional Clairet and lighter coloured rose.
- Main varieties: Merlot and Cab Sav.
- Saignee: here the wine is a by product (juice drawn off to concentrate the must for red wines).
- Direct press: lighter coloured roses.