WSET L4 - D4 Sparkling Wines Exam ,Most Recent
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Advantages to whole bunch pressing - Answers-- It's a
gentle form of pressing which provides delicate juice
- The juice is low in phenolics and tannins which can
create bitterness
- Juice is low in anthocyanins that provide (unwanted)
color
- Stems provide channels for juice to flow, minimizing
pressure required
Disadvantages to whole bunch pressing - Answers-- Can
be slow as whole bunches take up more room in the press
than crushed grapes
- It is more expensive as the press load is smaller
compared to destemmed and crushed fruit
Temperature of the primary fermentation of sparkling wine
production is usually between - Answers-14-20 C
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How might malolactic conversion be used during sparkling
wine production? - Answers-Malolactic conversion can be
used to reduce acidity, which can be a problem with cool
climate sparkling wines. Lactic acid is produced during
malolactic conversion, which can be creamy in texture.
Malolactic conversion is often used to enhance texture in
the base wine as well as stabilizing the wine. If malolactic
conversion doesn't take place during the first fermentation
it can occur during the second fermentation, which is often
undesirable. The buttery flavors often associated with still
wines are rare in sparkling wines because diacetyl (which
gives the buttery flavors) is metabolized by the yeast
during the second fermentation. Although malolactic
conversion adds stability, it is not always required; in this
case the wine will be sterile filtered.
Identify the two modifications that may be made to the
base wine for sparkling wine production - Answers-1.
Maturing the base wine on lees will impact on the aroma
and flavor profile of the wine. These associated aromas
and flavors will not be desirable for some styles,
particularly fruity styles of sparkling wine like Prosecco
and Asti.
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2. Maturing the base wine in oak will impact on the flavor,
depending on the age of the oak.
8 reasons why a sparkling wine might be blended
(assemblage) - Answers-balance (more body, or higher
acidity)
consistency (NV blend)
style (approachable vs age-worthy)
rosé wines (red & white wines)
complexity (flavors or texture)
minimization of faults (rescue wine)
volume (small vineyards)
price (grape varieties and press fractions)
Why is a cool climate is preferable for the growing of
grapes for traditional method sparkling wines? - Answers-
Just ripe fruit characteristics (apple, lemon)
- more delicate so that autolytic flavors are not
overwhelmed
Acidity is retained
-Required for balance in final wine
- Required for aging of wine
Slow accumulation of sugars