Bordeaux Pt 6 - Viticulture and Winemaking Flashcards
What training methods are permitted in Bordeaux?
Double Guyot and Taille Medocaine (similar to double guyot with shorter canes)
What is the planting density in Medoc?
4000 vines per acre/10000 per hectare
What is the planting density in Cotes de Bordeaux?
2000-2400 vines per acre/5000-6000 per hectare.
Why might planting density be reduced?
With global warming and drought, it will ensure each vine has access to enough water.
Historically how did estates get rid of excess water?
By using underground drainage pipes and/or drainage tiles.
What actions are being taken in Bordeaux in light of temperature increases and global warming?
The vignerons are switching to:
- drought resistant rootstock;
- Late-ripening, heat-tolerant, disease-resistant varieties;
-Canopy management to avoid sunburn.
How has climate change impacted bud break? What risk does it bring?
It is now earlier and leaves are sprouting as well as buds. This increases the damage that spring frosts can do.
How is the spring frost risk mitigated in Bordeaux?
The winter pruning is being delayed to try and delay bud break.
What has been a positive effect of global warming on wine character?
The grapes are riper leading to more generous, supple, fruit -driven wines with less astringent tannins.
What is CIVB doing to address global warming challenges?
Implemented a number of initiatives to address greener farming methods.
Committed to its producers achieving environmental certifications.
What is the Haute Valeur Environmentale (HVE) certification?
Follows practices which support biodiversity, judicious agrochemical use and water supply/consumption management
What progress has Bordeaux made on environmental issues in the last 12 years?
Reduction of:
20% of Carbon footprint;
20% of energy consumption;
20% of water consumption.
How are lower end white wines of Bordeaux characterised? How are they fermented and aged?
They are fresh, bright wines fermented in stainless steel with no MLF to preserve aromatics.
How are top-end white wines of Bordeaux characterised?eg Pessac-Leognan AOC
They are often barrel fermented and aged on lees to give a richer mouthfeel and creamier textures.
Which grapes are normally used in Sweet Wines of Bordeaux?
Semillon and Sauvignon Blanc with sometimes a small amount of Muscadelle.
How are grapes selected for “molleux” semi-sweet wine in Bordeaux?
They can be hand picked but selective sorting is not mandated. Can be both noble rot and not.