29 - Argentina Flashcards
How have changes in domestic consumption and economic openness impacted the Argentine wine industry?
Production was previously sustained via very high per capita domestic consumption of cheap wine made with Criolla grapes
Domestic consumption fell dramatically in 1970s
Meanwhile economic openness:
- Encouraged FDI
- Wine consultants e.g. Michel Rolland
- Cheap peso meant price competitive and cheap to invest
How is Argentina able to produce high volumes of good quality wine despite many vineyards being located at low latitudes?
High altitude crucial to moderating high temps - most wine regions planted 500-1000m ASL (up to 3,300m) in the west of the country
Diurnal temp can be up to 20c
Low latitude + high altitude = intense sunlight plus high UV –> high tannins and anthocyanins
What natural factor gives Argentina its continental climate? What does this mean for viticulture?
Andes –> rainshadow, rainfall as low as 200mm
- Irrigation essential - meltwater distributed by dams and channels
- Lowers disease pressure
What other natural factor reduces disease pressure? What are the downsides of this and how can it be mitigated?
Strong winds from mountains reduce humidity e.g. the hot Zonda
Blows in late spring and early summer –> water stress + flowering and fruit set + damage to grapes
Planting poplar trees as windbreaks
What other natural hazards exist in Argentina?
- Hail - damage grapes and reduce yield –> netting v. expensive or have sites across regions e.g. Mendoza
- Spring frost in flat or lower elevation areas esp. Mendoza
How does El Nino impact Argentina?
Every 2-10 years –> higher than average rainfall and hailstorms –> crop damage, disease, yields
E.g. 2016 - production down as much as 40% in Mendoza
How does soil vary in different parts of the country?
Why are calcareous soils especially prized?
Mostly alluvial
High altitude more calcareous rock, little organic matter –> low yields
Lower altitude gravel, sand, silt
Lowest altitude loamy-clay
Calcareous soils retain water and are cooler –> e.g. Paraje Altamira in Uco Valley
How did vine pull schemes in the 1970s/80s impact hectarage, grape varieties planted and old vines.
Ha fell from 300,000 –> 200,000
Lots of Malbec scrubbed up
Nonetheless, 30% of vines are >40yrs old
Describe the two types of irrigation widely practised. What are the advantages and disadvantages of each?
Flood Irrigation water released when needed, equivalent to a rainstorm, used in 70% of vineyards
+ Cheap to operate
+ Water drains deep into soil, encouraging root growth
- Water intensive –> shortages in Mendoza etc. –> water from bore holes as alternative
- Only suitable for flat vineyards
Drip irrigation water released slowly from hose pipes run along trellising
+ Uses less water –> sustainable
+ Cheaper than levelling vineyard
- Expensive to install and maintain –> water must be filtered, drippers can clog
- Can encourage shallow roots which make vines dependent on irrigation
Why is the timing of irrigation important?
Larger amounts during winter and limited amounts during the growing season (RDI) –> encourage root development and prevent vigourousness
What traditional training system is widely used and for which styles of wine?
What is becoming more popular and why?
Parral (pergola) which provides shade and keeps grapes away from hot earth –> Torrontes and vigorous, high yielding Criolla varieties
VSP - enable canopy mngt (important for black grapes) and drip irrigation
Why might Argentine growers continue to graft their vines in the absence of phylloxera?
Selection of rootstocks allows for resistance to drought conditions and nematodes
How has investment improved viticulture in Argentina? (5)
- Drip irrigation –> enables RDI
- Improved canopy mngt –> VSP
- Clonal section Dr Nicolas Catena on Malbec
- Picking times
- Research on soil types esp. importance of calcareous soils
While organic viticulture is becoming more popular, why does the number of certified organic vineyards remain low?
- Cost of certification
- Not a distinguishing factor given how little most vineyards spray
Describe the characteristics and style produced by the criolla varieties.
Pink-skinned grapes such as Cereza or Criolla Grande
Produce inexpensive wines for the domestic market
20% of vineyard area
Describe the characteristics of Malbec including vigour, ripening, flavour and structural characteristics.
How can it be blended?
How have plantings developed?
Vigorous
Mid-ripening
Deep colour
Ripe blackberry, plum
High alcohol, high/soft tannin, full body
Styles range from cheap and fruity –> structured and age-worthy
Blended usually single varietal but may have Bdx, Bonard, Syrah added –> may still be labelled as Malbec
Plantings up 350% 1995-2018 as market shifted from white high vol –> HQ reds
How can producers take advantage of different sites when making Malbec?
Malbec’s structure/quality can vary significantly.
Cooler sites have med(+) acid, med(+)/firm tannin and fresher flavours incl. floral and herbal
Warmer sites have less acid, softer tannin, more alcohol, riper flavours
Blending these can:
- Improve balance
- Bulk up £££ wine with £ wine
- Achieve consistent flavour
Describe the evolution of red winemaking in Argentina.
Traditional large oak with some oxidation
Modern late harvest, temp controlled, new oak –> full body and ripe fruit
New Wave earlier picking for fresher style, wild yeast, whole bunch/berry ferments, less extraction, diversity of vessels e.g. Zuccardi
Super Premium Length ageing process often from singlevineyards
Describe why Mendoza is able to produce both inexpensive and super-premium wines.
Range of altitudes from 500m in Northern and Eastern Mendoza up to 1500m in the Uco Valley
- Within Central Mendoza - vineyards range from 600 - 1,100m
Topography Northern/Eastern Mendoza are on flat plains –> enables mechanisation and flood irrigation
Water availability Northern/Eastern Mendoza have access to Mendoza River –> plentiful water vs. drip irrigation in Uco Valley
Soils alluvial soils in lower regions have greater fertility vs. cooler limestone or clay soils e.g. Gualtallary in the Tupungato department
Latitude variation Southern Mendoza/San Rafael (DOC) 200km south of rest of the region –> moderates summer temps
Which departments within Mendoza are known for producing HQ Malbec?
Central Mendoza
1. Lujan de Cuyo DOC - 900-1,100m, many old vines with 24mnths ageing and 12 in oak
2. Lujan de Cuyo GI - Las Compuertas - higher altitude –> med(+) acid and firm tannins –> ageability
3. Maipu - lower vineyards, many old vines –> intensely fruity, full-bodied, softer tannins
Uco Valley
1. Tupungato - highest area of already high altitude Uco Valley, Gualtallary district is 1,100-1,600m + limestone soils –> herbal character
2. San Carlos - Paraje Altamira, stoney alluvial soils at marginally lower altitude than Tupungato
Describe the growing conditions and wines of San Juan.
Lower and hotter although some sites up to 1500m e.g. Pedernal Valley
Lower sites planted with Criolla grapes - plantings and region has been shrinking
Syrah most widely planted with best examples from Pedernal Valley
Describe the wines of La Rioja. Name a significant producer from the region.
High vol from a range of grapes incl. Torrontés, Cabernet Sauvignon, Malbec, Syrah
La Riojana co-operative
