Winemaking Flashcards
Pros and cons to whole-bunch pressing
?
PRO:
Gentle
Low in solids/phenolics
Stems create network of channels for juice to flow: less pressure
CON:
More time consuming, less bunches per batch
Fermentation temp range for sparkling?
14-20C
How to choose a yeast strain?
Cultured
Ferment to dry
Withstand conditions for both first/second fermentation
Promotion of desired flavors
Ferment in alcoholic conditions (2nd ferm)
Most common yeast strain for sparkling?
EC1118 Prise de Mousse
Key difference in ML in sparkling wines?
Diacetyl is metabolized by the yeast during second fermentation
Reasons to blend?
Balance Consistency Style Rose Wines Complexity Minimalization of Faults Volume Price
What begins secondary fermentation?
Liqueur de Tirage
wine/must, sugar, cultured yeast, yeast nutrients, and a clarifying agent
Types of clarifying agents?
Bentonite
Aglinate (seaweed extract)
How much sugar is added to a dry, fully sparkling wine?
24g/L sucrose
Is alcohol created during the second fermentation?
Yes, approx. 1.5% increase
Name for secondary fermentation?
Prise de Mousse
“Capturing the Sparkle”
Define “sur latte”
“On the strips”
Storing champagne bottles horizontally
How long does Autolysis last?
Generally 4-5 years, but can last up to 10
Importance of “Recently Disgorged”?
The longer the wine is on the lees, the faster its evolution after disgorgement. Drink soon.
Where is wine kept for riddling?
Hand riddling: Pupitres
Mechanical: Gyropalettes (computer-controlled)
What is remuage?
Riddling
How long does riddling take?
8 weeks manually
3-4 days mechanically
What is sur pointe?
Storing the bottles neck-down to collect lees
Describe the process of disgorgement.
Bottles cooled to 7C (increases solubility of CO2)
Immersed in frozen brine bath (freezes yeast)
Invert bottles
Remove crown cap (pressure will extract yeast)
Liqueur d’Expedition added
Sealed
What is Liqueur d’Expedition?
Wine/Sugar mix or RCGM
Determines final sweetness
How does age impact dosage?
The older the wine, the less dosage needed to balance acidity
What causes toasted vanilla notes?
Maillard reaction
Sugar from the dosage reacts with compounds formed during autolysis
Occurs during bottle aging
Benefits of transfer method?
Cost-saving
Reduces bottle variation
Easier final adjustments
Small and large sizes
Describe the transfer method
Traditional method up to riddling Wine chilled to 0C Bottles opened by transfer machine and poured into tanks Dosage and SO2 added Sterile filtering Bottling
Describe the ancestral method
Partly fermented must is bottled
The remaining sugar converts to CO2 and alcohol, creating natural effervescence
Lees filtered (optional)
NO dosage
What is Pet Nat?
Petillant Naturel
Uses ancestral method, no set regulations
Low alcohol, cloudy, dry or off dry, unconventional flavors (cider-like)
No added SO2
Not meant for aging
Three names for tank method?
Charmat
Cuve Close
Martinotti
Describe the tank method
Ferment 16-18C to retain aromatics/flavors
Sugar and yeast added to the pressurized tanks
One-month second fermentation
Cooled to 2-4C to stop fermentation
Aged on lees (optional)
Cold stabilization/filtration/sugar adjustment
Chilled to -2C to stabilize and reduce effervescence
Bottled with a counter-pressure filler
What is counter-pressure filling?
Bottle filled with CO2 under pressure
Filled with chilled wine to replace CO2
Prevents loss of CO2/entrance of O2
Describe the Asti method
Similar to tank method, but single fermentation
Natural sugar only
CO2 initially allowed to escape
CO2 valve closed when desired pressure/sugar are reached
Stopped by rapidly chilling and filtering
Describe carbonation
Least expensive (and prestigious)
Used for petillant (low pressure) only
Retains aroma/flavor of base wine
Sparkling wine RS level chart?
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
Tolerance of +/- 3 g/L for each
How to cork sparkling wine?
31mm cork compressed by machine
Inserted into 18-21mm neck
Immediately tries to expand, creates mushroom
Factors influencing formation/size of bubbles?
More sugar = more CO2
Capacity of CO2 to be dissolved (health of grapes/winemaking/grape variety)
More time on lees = less CO2
Quality disgorgement = More CO2
Describe the style of a typical Champagne?
Medium intensity Apple, lemon, autolytic/biscuit High acidity Medium alchohol Good->Outstanding
Methods of making Rose Champagne?
Rose d’Assemblage - blending red wine
Rose de Saignee - maceration with skins, then wine is bled off
Pressing process in Champagne?
Whole bunches in basket press
Gradual increase of pressure
Juice split into the cuvee (free run/first press) and the taille (remainder)
Fermentation trends in Champagne?
Increasingly more using foudres, classicly stainless steel
Increasingly more producers encouraging malolactic, particularly in warmer years
When is Champagne blended?
Between first and second fermentation
Why is autolysis particularly important in Champagne?
Brioche flavors more prominent in cool climates
Creates style
Aging/lees aging requirements in Champagne?
NV: 15 months minimum aging, 12 of these on lees
Vintage: 3 years minimum aging, 1 on lees
Define Cremant?
Prior to 1985, semi-sparkling Champagne
After the ban of “methode champenoise”, a traditional method sparkling grown outside Champagne
Features of cremant?
Hand harvesting Whole bunch pressing Max yield 110L/150kg Min 9mo aging on lees Min 12mo aging between tirage and release Max 13% ABV Min 4 atmospheres pressure
Describe a typical Cremant d’Alsace:
Medium intensity Apple/pear Biscuit/autolytic Medium+ to High acid Brut Light/medium body
Typical production methods in Cremant d’Alsace?
Chaptalization (low potential alcohol) Single vintage (no reserve wines) Short lees aging (9-12 months) Brut (8-10g/L dosage) Rose: 12-24hr maceration
Describe a typical Cremant de Bourgogne?
Medium Intensity Apple/lemon/apricot Brioche/autolytic Medium+ to High acid Brut Primarily white sparkling; also Blanc de Blanc/Noir, Rose
Regulations for Cremant de Bourgogne blends?
Max 20% Gamay Blanc - min 30% Chardonnay/Pinot family Blanc de Noirs - only Pinot Noir Rose - Pinot Noir & Gamay Blanc de Blanc - all white varieties permitted
Describe a typical Cremant de Loire?
Medium intensity
Apple/Citrus
Toasty/autolytic
High acidity
Mostly brut, with some demi-sec and brut nature
90% white sparkling based on Chenin Blanc
Can be honeyed with age
Grapes of Saumur Mousseaux, and one unique fact?
Blanc: MIn. 60% Chenin Blanc, max. 10% Sauv Blanc
Rose: Min. 60% Cab Franc, max. 10% Sauv Blanc
Mechanical harvest and more juice extraction allowed
Grapes of Vouvray Mousseaux? What else is made?
Chenin Blanc must be majority
Orbois is the only other grape allowed
Vouvray Petillant (lightly sparkling) and Vouvray Pet Nat also made
How is Cava Rosado made?
Min. 25% black grapes
Maceration - blending not allowed
Typical Cava winemaking techniques?
No acid adjustment Cultured yeast Malolactic prevented Gyropalette + quick disgorgement (80 min) 8-9g/L dosage
Types of Cava, minimum lees aging, and flavor profiles?
Cava - 9 months; lemon, apple, herbal, biscuit; med/med+ acid
Cava Reserva - 15 months; more autolytics
Cava Gran Reserva - 30 months; smoky toasty, pronounced autolytics
Spumante vs frizzante?
Spumante: Min. 3 bar of pressure
Frizzante: 1-2.5 bar
Winemaking for typical Prosecco?
Destem/press (whole bunches allowed) 15-20 day fermentation at 18*C Malo blocked Second fermentation in tank for one month at 12-15*C A few weeks on lees Chilled/filtered/bottled
How is sweetness determined in Prosecco?
At tirage, not dosage
Tirage provides both required CO2 level and final sugar desired
Sweetness can be legally adjusted as of 2014
What is Charmat lungo?
Higher quality Charmat production
Min. 9 months lees aging
What is Prosecco Col Fondo?
Traditional method, undisgorged Lightly cloudy, bone dry, frizzante Crown cap with sediment "Rifermentazione in bottiglia" "Sui lieviti" required since 2020 (on lees) Very little production, trendy
What is Tranquillo?
Still Prosecco
Very little production
Describe a typical Moscato d’Asti?
Pronounced aromas of Orange blossom, grape, peach Medium Acid Low ABV Sweet (13%) Semi-Sparkling
Describe a typical Asti?
Slightly higher alcohol than Moscato d’Asti (6-8%)
Fully Sparkling
Sweet (10%RS), ranging Extra Dry->Dolce
Winemaking for Asti/Moscato d’Asti?
Wine chilled/clarified Can be stored up to 2 years Warmed up on demand for single fermentation No malolactic Neutral yeast Low temperatures at fermentation
Describe a typical Lambrusco?
Strawberry, red cherry, red plum High acid Some RS Medium/Medium + tannins Acceptable->good Pale pink->deep ruby Spumante or frizzante
Describe maceration in Lambrusco?
Typically 1-2 days, up to 3-4 for Grasparossa
High anthocyanin levels
Restricting tannin levels
Describe the winemaking process for Lambrusco?
Low temp fermentation (18-20C)
MLF blocked
Tank method (limited traditional/ancestral)
Secondary fermentation: 2 weeks for frizzante, one month for spumante
No lees aging
Dosage possible, RCGM for sweet wines
Typical Franciacorta?
Apple/peach Biscuit-autolytic Medium alcohol Medium+ acid Very good->Outstanding
Winemaking in Franciacorta?
Whole-bunch press required Pinot Noir can be destemmed for rose Ferment in stainless steel Reserve wines not often used Traditional method
Rules for Non-vintage Franciacorta?
Up to 50% Pinot Bianco allowed
Min. 18mo on lees
Often mostly one vintage
Describe Saten Franciacorta?
White grapes only
Min. 24mo on lees
Brut only
Describe Rose Franciacorta?
Min. 35% Pinot Noir
Can be made by any rose method
Min. 24mo on lees
Describe Millesimato Franciacorta?
Vintage declared - 85% from that vintage
Min. 30mo on lees
Describe Riserva Franciacorta?
Millesimato with 60mo minimum lees aging
Describe sweetness levels in Franciacorta?
Dosaggio Zero = Brut Nature
All others standard
Tend to veer on lower side of sweetness scale
Describe a typical Trentodoc?
Ripe apple Biscuit/autolytic Medium Alcohol Medium+/High acid Very good->Outstanding
Winemaking for Trentodoc?
Traditional method required by DOC First fermentation in stainless MLF occurs to balance acid Cultured yeast Small amounts of reserve wines Min. 15mo lees Brut Nature to Dolce
Categories of Trento and their requirements?
Vintage - min 24mo lees
Riserva - min 36mo lees (usually 60-120); Brut Nature/Brut only
Define Sekt:
Tank method
Base wines from Southern Europe, made in Germany
MIn. 90 days on lees, or 30 if stirred
Light fruit, no autolytic, medium acid
Bruit/Extra dry
Inexpensive, high volume - 90% of Germany sparkling
Define Deutscher Sekt:
German-grown fruit
Tank or traditional
No varietal/vintage rules, can be any style
Define Deutscher Sekt bA:
bA = bestimmter Anbaugebiete (of a defined region)
Within QbA (Qualitatswein)
Region must appear on label
Tank or traditional
Define Winzersekt:
Winzer = winegrower Estate-bottled and grown Traditional method Min. 9mo lees Mostly Riesling Vintage, varietal, & producer on label
Describe a typical Riesling Sekt?
Medium intensity Apple/Peach Toasty/Smoky/Autolytic High acid Brut Very Good->Outstanding
Define Perlwein:
Secco
Tank method or carbonation
Less than 3 atmospheres
Cheaper than fully sparkling (no tax)
Winemaking for Sekt?
Tank, traditional, or transfer
min. 9 mo on lees, traditional only
Riesling = no MLF
Describe a typical sparkling from England/Wales?
Distinguished by just-ripe fruit and very high acid Medium alcohol Light/medium body Apple, lemon, autolytic Very good -> Outstanding
Grapes in England/Wales sparkling?
Chardonnay and Pinot Noir
Some Meunier
German crossings/hybrids (old school)
Standard practice for England/Wales sparkling?
Traditional Method Vintage (don't yet have reserve wine) Min. 9 mo lees Usually unoaked MLF
Custom crush operations in US?
Rack & Riddle - Sonoma
Brut Custom Crush - Napa
Common styles of sparkling in US?
Premium - traditional
Inexpensive - tank
Blanc de Noirs - not regulated, contains white grapes
Sparkling winemaking in Chile?
90% Tank (Chard/SB)
10% Traditional
Winemaking in Argentina?
Carbonation (inexpensive)
Tank (mid-priced)
Traditional (premium)
Types of sparkling wine in South Africa?
Sweet, carbonated, inexpensive
- simple, fruity from Sauv Blanc, Muscat, and Pinotage
Cap Classique
Winemaking for Cap Classique?
Traditional method Acidification common Old barrels common MLF optional Reserve wines premium only Min. 12mo lees
Winemaking for New Zealand?
Transfer, traditional, or carbonation Stainless fermentation MLF common Avg. 18mo lees Reserve wines occasionally used Zero or low dosage Carbonation:
Unique factor of New Zealand sparkling?
Very few capable facilities Blended at winery Tirage at external facility Second fermentation at winery Disgorge/dosage at external facility