Sparkling Wine Flashcards
Sparkling Wine Ideal Growing Environment
Cool Climate
- Ripe enough flavours
- Retain acidity
- Low sugar/potential alcohol (9-11%)
Warmer areas:
- riper fruit, lower acidity
- good for short-aged wines (tank or short time on lees) where lees flavours wouldn’t dominate
Less expensive wines can be grown on flat, fertile plains
Sparkling Wine Grapes: Chardonnay
Apple and citrus flavours well-suited to autolytic flavours
Early ripening of flavours but retains acidity
Vulnerable to spring frosts bc early budding
Prone to coulure and millerandage
More disease resistant than Pinot, but powdery mildew, grapevine yellows, and botrytis bunch rot if rain before harvest
Yields can be high without loss of quality
Sparkling Wine Grapes: Pinot Noir
Early Budding and Ripening
Prone to spring frosts, coulure
Moderate yields and quality is worse the higher the yield
Disease prone: downy mildew, powdery mildew, botrytis, bunch rot, fan leaf, and leaf roll.
Add body and red fruit flavours
Vineyard Management for Sparkling Wine
Higher Yields: leads to high acid, low potential alcohol, delicate flavours
Good to have high yields in Champagne as mitigates volumes if some of the crop is damaged
Avoid botrytis, which releases enzyme laccase
Off flavours enhanced by the effervescence
Sparkling Wine Harvest
Early harvest for high acidity and to avoid autumn rain
Hand harvest in small crates to avoid splitting grapes/oxidation and introducing phenolics to the juice. Sorting in the vineyard
OR mechanical harvesting for large volume. Can ensure all grapes pick at optimal ripeness, as quicker to harvest. Night harvest. Cheaper. Needs sorting after picking.
Sparkling Wine Pressing
Whole bunch: for premium trad method. Gentlest press, low in solids and phenolics. Stems create channels for juice to flow which minimises pressure required. Takes longer as less can fit.
Minimise maceration and extraction from skins
Basket and pneumatic presses
Split into press fractions. Press juice matures faster - for immediate drinking
Clarified before fermentation and can be fined
Sparkling Wine: Primary Fermentation
14-20 degrees C: retains fruit flavours but warm enough for yeast. Low pH juice is stressful for yeast
Stainless steel tanks: large volumes with temp controls
Cultured Yeasts specially chosen to ferment to dryiness in high acid/low pH environment. Can choose strains for certain flavours (for tank method) or neutral (for trad)
Same yeast used for second ferment - must use yeast that can operate in 10% abv with low pH, low temp, high pressure
Rapid autolysis and easy flocculation.
Yeast called Prise de Mousse (EC1118) most common strain
Sparkling Wine Yeasts
Prise de Mousse - EC1118
Eperany selection - LALVIN DV10 (neutral character, works in low pH, high total SO2 and low temp environments)
Base Wine Maturation
Can be matured in oak (usually neutral) or on the lees
Stainless steel for fruity styles
Assemblage/Blending
Balance Consistency Style Rose Complexity Minimise faults Volume Price
Traditional Method: Secondary Fermentation
- Called Prise de Mousse
- Liqueur de Tirage (wine, sugar, nutrients, yeast, clarifying agent) added
- 24g of sucrose per litre for most fully sparkling. +1.5% alcohol for every 24 g/L of sucrose
- CO2 produces pressure - approx 6 bars for more sparkling wine
- less sugar for less sparkling
- bottled and sealed with crown cap
- stored horizontally at 10-12C
- Cooler temp = slower ferment, maybe more complex
- 4-6 week second ferment
Traditional Method: Lees Ageing
- Matured horizontally (sur latte) in bottle at around 10C
-Autolysis detectable 15 months - Autolytic flavours + anti-oxidative qualities
BUT the longer it ages on lees, the quicker it evolves once disgorged
Traditional Method: Riddling and Disgorgement
Pupitres for hand riddling
Gyropalettes for mechanical riddling
Bottles cooled to 7C and neck frozen in brine solution
cooling makes CO2 more soluble and the wine less fizzy
Liqueur d’expedition/dosage added
Sparkling Wine Sweetness Levels
Brut Nature 0-3 g/L
Extra Brut 0-6 g/L
Brut 0-12 g/L
Extra Sec 12-17 g/L
Sec 17-32 g/L
Demi-sec 32-50 g/L
Doux 50+ g/L
Transfer Method
Same as traditional, but the wines are transferred into tank instead of riddling
Consistency between bottles
Cost and time savings
Fining agents not needed in liqueur de tirage
Bottles opened by transfer machine and poured into pressurised tanks. Wine sweetened, SO2 added, sterile filtering
Ancestral Method
Bottled before first fermentation started. Remaining sugar ferments in the bottle and the CO2 is trapped.
Can disgorge or not
Ferment can slow or stop, and pick up again later
Tank Method
Quick and cheaper
First ferment at 16-18C to retain fresh aromas
sugar and yeast added for second ferment in pressurised tank
Stopped by cooling to 2-4C and filtering off lees (unless lees ageing desired)
Cold stabilised
Yeast removed by centrifugation or filtration
Sugar levels adjusted, SO2 levels checked/corrected, sterile filtering and bottling.
Bottling done at -2C to slow fizziness and bottled with a counter pressure filler.
Asti Method
Only one fermentation. The tank is sealed partway through and the CO2 is trapped. Can stop ferment early by chilling and filtering to leave some residual sugar
Carbonation
Like a sodastream
CIVC
Comite Interprofessionnel du Vin de Champagne
Styles of Champagne: NV
Blended from multiple vintages
Follows a house style
Blended base wine with reserve wine from previous vintages to create similar profile each year
Styles of Champagne: Vintage
100% must be from the vintage on the label
Only produced from the best vintages
Reflects the house style but does show the unique vintage characteristics
Styles of Champagne: Rose
Rose d’assemblage if white blended with red
Rose de Saignee if done with skin maceration
Styles of Champagne: Blanc de Blancs
From white grapes only
Leaner and more austere in youth, with great ageing potential