New Zealand Flashcards
What is the trend in area under vine and exports?
- From 5,000 ha to 38,000 ha
- From 6,000 hL to 2.7 mn hL
What is the climate and why? What is the exception?
- Mostly maritime
- Because of the cool Pacific Ocean
- Exception: Central Otago with semi continental climate
Between what latitudes is New Zealand located and what are the resulting climates (temps)?
- 36°-46°S
- Cool climate on South Island
- Moderate climates in the north of the North Island (e.g., Auckland and Gisborne)
Where are most vineyards located and why?
- Predominantly on the east of the islands
- Protected by southern Alps (mitigate rainfall and winds)
What are further climatic influences?
- High UV radiation (esp. in the North)
- Long hours of sunlight (esp. in the South)
- Large diurnal range (esp. in the South)
What are reasons for the high UV radiation and what are the effects on grape growing?
- Due to the hole in the ozone layer and the very low levels of air pollution
- Promotes color and tannins
What are soil characteristics and what does that mean for vineyard management?
- Fertile soils
- Canopy management to reduce vegetative growth and shading
How are vines trained?
- VSP with two canes, sometimes four canes per vine (e.g., Scott-Henry)
- Fruiting zone is trained relatively high, because there is no reflection from the ground needed (already enough sunshine) -> makes harvest easier
What is the planting density and what are typical yields?
- Low planting densities (often 2,000-2,500 vines/ha)
- High yield per ha (roughly 70 hL/ha)
How is harvest typically conducted?
Mostly by machine as vineyards are planted on flat land
What are potential hazards?
- Fungal diseases due to high rainfall levels and humidity (esp. North Island)
- Birds eating and damaging grapes (rot) -> bird scarers and netting
- Sunburn -> Leaf positioning for shading
- Strong winds that increase evapotranspiration -> trees as wind breaks
- Tropical cyclones affecting flowering, fruit set, and harvest
What is the rainfall and is irrigation practiced?
- High levels of rainfall
- Irrigation still often practiced due to free draining alluvial soils and strong winds
Is sustainable or organic winemaking popular?
- Almost all producers are part of the Sustainable Winegrowing New Zealand initiative
- Less than 5% certified organic
What are the 4 main varieties (incl. %) and other varieties planted?
- Sauvignon Blanc (62%)
- Pinot Noir (15%)
- Chardonnay (8%)
- Pinot Gris (7%)
- Merlot
- Riesling
- Syrah
- Cabernet Sauvignon
- Gewürztraminer
Describe the production of Marlborough Sauvignon Blanc in the vineyard
- Ripe fruit: high light and water levels (irrigation if necessary) + canopy management
- Intense aromas and high acidity: high diurnal range and long growing season
- Herbaceous to tropical flavors: row orientation and careful canopy management (sunny vs. shaded side)
- Herbaceous aromas: slightly early picking and machine harvesting (-> skin contact with fruit)
Describe the production of Marlborough Sauvignon Blanc in the winery
- Preserve primary fruit:
- Reduction of contact with oxygen (e.g., refrigeration)
- Low fermentation temps
- No malo
- Minimal ageing on lees (2-3 months)
- Promote aromatic intensity: choice of yeast
- Retain freshness: use of ascorbic acid and SO2 at bottling and bottling under screw cap
What are other trends regarding winemaking of Sauvignon Blanc or other white varieties?
- Create different styles through:
- Barrel fermentation
- Lees stirring
- Partial or full malolactic conversion
- Oak maturation
- Skin contact
What three types of red wines are produced and how?
- High-volume, fruity: mid-range fermentation temperatures, cultured yeasts and neutral vessels
- Premium Pinot Noir and Syrah: partly whole-bunch fermentation (herbal/floral note), cold maceration to extract more color and aromas, maturation in larger oak vessels
- Premium full-bodied Cabernet Sauvignon and Merlot: maturation in French oak barriques
How are sweet wines produced?
- Noble rot for premium Semillon and Riesling
- Long hang times for some others
What is special about the sealing of bottles?
90% is sealed with screw cap, even many premium wines (e.g., Felton Road)
North Island - Greater Auckland
What is the climate and what is the effect?
Moderate maritime climate -> high humidity -> fungal diseases
North Island - Greater Auckland
What are the three sub-regions?
- Waiheke Island
- West Auckland
- Matakana
North Island - Greater Auckland - Waiheke Island
Describe the typical style of wine (varieties, aromas, body, quality, price)
- Cabernet Sauvignon, Syrah
- Black fruit with oak spice
- Medium to full body
- Up to outstanding
- Premium price
North Island - Greater Auckland - Waiheke Island
What are climatic influences and how do they help achieve the desired style of wine?
- Slightly warmer than most of Auckland
- Low diurnal range -> helps to fully ripen black varieties
- Shelter from onshore winds
North Island - Greater Auckland - Waiheke Island
Name two significant producers
- Man O’ War
- Stonyridge
North Island - Greater Auckland - West Auckland
What is the trend in vineyard area and what is a well-known producer from here?
- Decreasing due to urbanization (cost of land)
- Kumeu River
North Island - Greater Auckland - Matakana
What wines are produced and where are they sold?
- Variety of styles
- Sold to tourist trade
North Island - Gisborne
Where are vineyards located and what is the soil?
- Mostly on flat, fertile floodplain with clay, loam and silt
- Higher quality on hillsides with poorer soils
North Island - Gisborne
What is the climate and rainfall? What does that mean for vineyard management and harvest?
- Moderate maritime climate
- High hours of sunshine and warming breezes -> low frost risk
- High rainfall (1,000 mm) -> less irrigation needed
- Canopy management needed (fertile soils and rainfall)
- Monitoring of weather forecasts to pick at the right time
North Island - Gisborne
What are the two most important varieties?
- Chardonnay (>50%)
- Pinot Gris
North Island - Gisborne
Describe the two styles of Chardonnay produced (aromas, acidity, body, quality, price)
- Simple, fruity, unoaked, inexpensive
- High-quality barrel fermented
- Ripe stone fruit and creamy flavours
- Medium to medium(+) acidity
- Full body
- Outstanding quality
- Premium price
North Island - Gisborne
Describe the two styles of Pinot Gris
- Dry to medium-dry
- Simple, inexpensive, fruity wines
- Good quality, premium priced wines with lees stirring and old oak maturation
North Island - Hawke’s Bay
What is the climate and soil? What is it similar to and what is the resulting wine style?
- Moderate maritime climate
- Gravelly and alluvial soils
- Similar to Bordeaux
- Merlot-dominant blends
North Island - Hawke’s Bay
What are the two best-known sub-regions?
- Gimblett Gravels
- Bridge Pa
North Island - Hawke’s Bay
What are the most grown varieties?
- Bordeaux varieties: Merlot, Cabernet Sauvignon, Cabernet Franc, Malbec
- Syrah
- Chardonnay
North Island - Hawke’s Bay
What three types of wines are produced from Bordeaux varieties?
- Simple, fruity, inexpensive Merlot
- Outstanding, premium-priced Merlot, blended with Cabernet Sauvignon and Cabernet Franc (usually in French oak for 12-18 months)
- Deeply coloured, very good quality perfumed Malbec (single varietal or blend)