Viticulture & Vinification Flashcards

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1
Q

What are the 4 pruning methods used in Champagne?

A

Chablis
Cordon
Guyot
Marne Valley

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2
Q

What is the practice of desuckering and why is it carried out?

A

Desuckering involves removing any non-fruitful shoots (also known as “suckers”). The aim is to encourage the vine to focus its energies on the main shoots which will bear the future precious clusters.

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3
Q

Harvesting method in Champagne?

A

Entirely done by hand across the region

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4
Q

Which 2 entities regulate the annual authorized harvest yield?

A

The Comité Interprofessionnel du Vin de Champagne (CIVC) and the INAO (Institut National de l’Origine et de la Qualité)

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5
Q

Type of pressing used in Champagne?

A

Whole clusters are pressed directly as carefully and gently as possible so as not to colour the juice through excessive contact time with the skins – unless, of course, the aim is to make a rosé wine using the maceration or saignée (bleeding off the juices) method.

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6
Q

Pressing is carried out in two stages. What are they?

A

The “cuvée” corresponds to the first pressing juice, and the “taille” the second. Each has its own distinct characteristics and will therefore be used to make different types of wine.

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7
Q

What is the traditional unit of measurement for a single press-load of grapes in Champagne?

A

4,000kg “marc”

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8
Q

The first pressing, aka the “cuvée” corresponds to the first how many litres of grape juice from a “marc” (4,000kg)? What about the tail/second pressing aka “taille”?

A

Cuvée: first 2,050 litres

Taille: following 500 litres

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9
Q

How does the “cuvée” differs from the “taille” in terms of organoleptic qualities, composition and potential?

A

Cuvée: richer in sugar and acid, better balanced and more fragrant than the taille. In short, it has a different chemical composition, untainted by pigments and not discoloured by oxidation.

Taille: fruitier, less acid and slightly coloured due to the presence of mineral and albuminous substances, pigments and colloids in the must. Some producers pride themselves in only using the cuvée in the elaboration of their Champagne.

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10
Q

How do you call the final pressing of the grapes after the cuvée and the taille have been extracted and what will be done with that juice?

A

It is called the rebêche, which is by law sent directly to the distillery to make alcohol.

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11
Q

After the juice is extracted from the grapes at pressing, what is the name of the open tank in which flows said juice?

A

A belon

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12
Q

How long does clarification/”débourbage” take and what is it?

A

This refers to the settling of the freshly pressed grape juice, during which any fragments of skin, pips and other sediment settles at the bottom of the vat. The purpose is to send clear juice to the fermentation stage in order to obtain wines with the purest expression of fruit. After 12 to 24 hours, the clear juice is then drawn off.

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13
Q

What is the goal in terms of final maximum alcohol level in the base wines?

A

11% abv max

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14
Q

Which important step takes place after the primary alcoholic fermentation of the base wines (potential malolactic conversion included) and before the bottling and second fermentation stages?

A

blending

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15
Q

What is the name of the liqueur that is added to the base wines once blended and bottled for second fermentation to occur? What does it contain?

A

“liqueur de tirage”, which is a mixture of still wine, sugar and yeast. The yeast will consume the sugar, releasing alcohol and effervescence, i.e. bubbles.

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16
Q

What are 2 clearly defined rules regarding bottling of the base wines?

A
  1. Bottling cannot take place before the first day of January following the harvests.
  2. The wine cannot be transferred from one container to another: it will be sold in the bottle in which it underwent its second fermentation.
17
Q

What is the name of the process referring to the death and decomposition of yeasts?

A

Autolysis

18
Q

What happens chemically when a wine is left in contact with the lees?

A

Enzymes start to break the cells down producing mannoproteins (mannose-containing glycoproteins) and polysaccharides that are released into the wine.

19
Q

What is the 5 main effects of autolysis on wine?

A
  1. Contributes to a creamy mouthfeel that may make a wine seem to have a fuller body
  2. The release of enzymes inhibits oxidation which improves some of the aging potential of the wine
  3. The mannoproteins improve the overall stability of the proteins in the wine by reducing the amount of tartrates that are precipitated out
  4. The mannoproteins may also bind with the tannins in the wine to reduce the perception of bitterness or astringency in the wine
  5. The increased production of amino acids leads to the develop of several flavours including aromas of biscuits or bread dough, nuttiness and acacia
20
Q

After how long does autolysis, and its impact on the wine, starts to become noticeable and how long can that effect keep influencing the style of the final wine?

A

It becomes noticeable after 18 months and will continue to impart traits to the wine for at least 5 years.

21
Q

How long must all genuine Champagne be spent maturing in the winemaker’s cellar before release?

A

At least 15 months

22
Q

How long must Vintage Champagne Cuvées mature in the winemaker’s cellar before release?

A

At least 36 months (3 years)

23
Q

Bottle-turners performing hand riddling on “pupitres” rotate the bottle by which fraction of a turn?

A

1/8 or 1/4 of a turn at a time

24
Q

How long does it take to complete manual “remuage” and how many turns per bottle does it usually involve?

A

4 to 6 weeks and involves on average 25 turns per bottle

25
Q

How long does it take to complete automated riddling using a gyropalette?

A

1 week

26
Q

How cold is the solution in which the neck of the bottle is plunged for disgorgment?

A

Approximately -27C

27
Q

Name of hand disgorgment?

A

“À la volée”

28
Q

What is liqueur de dosage?

A

A mixture of cane sugar dissolved in wine. The quantity of liqueur used will depend on the type of Champagne we are making.

29
Q

Sweetness scale in Champagne

A

0-3 g/L Brut Nature
0-6 g/L Extra Brut
0-12 g/L Brut
12-17 g/L Extra Dry
17-32 g/L Sec
32-50 g/L Demi-Sec
50+ g/L Doux

30
Q

What can a winemaker do to influence the style of the wine at dosage that does not involve adjusting sugar levels?

A

Depending on what we have in mind: if we want to keep as much of the wine’s personality and integrity as possible, a very neutral liqueur will be used. If, on the other hand, we want to elevate the wine with other aromas, a liqueur containing a reserve wine for example, a great Champagne wine set aside for long ageing, will be used.

31
Q

What is the name used to refer to the vigorous shaking of Champagne bottles once corked to mix the wine perfectly in with the liqueur?

A

“Poignettage”

32
Q

What is the name used to refer to the careful inspection of corked bottles to check their limpidity before cellaring for another few months?

A

“Mirage”

33
Q

What are some of the regulations in Champagne regarding grubbing-up and replanting of vines?

A

Authorities must be notified of such undertakings. Planting must take place before the end of May (or late July for plants started in pots), following a period when the soil is rested and prepared.

34
Q

When can you start producing Champagne from the fruit of young vines?

A

Champagne AOC wines may only be produced from the fruit of third-leaf vines (two years after planting).

35
Q

Maximum inter-row spacing (between the rows)…

A

1.5 metres

36
Q

Intra-row spacing (between individual vines)…

A

0.9-1.5 metres

37
Q

Total spacing (inter- and intra-row)…

A

No more than 2.5 metres

38
Q

Rough average planting density in Champagne?

A

8,000 plants per hectare

39
Q

New plantings are subject to strict EU regulations, in accordance with fixed annual quotas for all wine-producing member countries. New planting rights are then distributed among the different wine-growing regions by the French Minister for Agriculture. What has been the annual rights allocation for the Champagne region for some years now?

A

It has not exceeded 1% of the total area under vine.