WSET Session 2 Flashcards
What are the four parts of a grape?
Skin, pulp, seed and stems.
What three things does grape skin do for a wine?
Provides color, tannin, and flavors
What four things does the grape pulp do for a wine?
Provides water, sugar, acid and flavors
What do seeds and stems provide for a wine?
Tannin
What five things do vines need to grow?
Water, sunlight, carbon dioxide, warmth, and nutrients
What happens to grapes during photosynthesis?
Water, carbon dioxide and sunlight create sugars in the grape
What are the four steps of grape formation and ripening?
Flowering, fruit set, véraison, ripe grapes.
What happens during fruit set?
Flowers become grapes
What happens during véraison?
The ripening process begins and grapes start to lose their green color.
What temperature range counts as a cool climate?
16.5°C (62°F) or below
What are the qualities of grapes grown in a cool climate?
less alcohol, less tannin, lighter body, more acid
What temperature range counts as moderate climate?
16.5°C (62°F) to 18.5°C (65°F)
What temperature range counts as a warm climate?
18.5°C (65°F) to 21°C (70°F)
What are some qualities of grapes grown in a warm climate?
More alcohol, fuller body, more tannin, less acidity
What is latitude’s affect on grapes?
Most grapes are grown between 30 and 50 degrees north or south of the equator
What is altitudes affect on grapes?
Temperatures drop with altitude (high altitude = cooler climate)
What are seas affect on grapes?
Ocean currents can raise or lower vineyard temperatures
What are rivers affect on grapes?
Warm rivers provide warmth and sunlight reflection can create more light to ripen grapes
What are slopes and aspects affect on grapes?
Slopes and aspects facing the equator get more heat and light
What are clouds, fog, and mist’s affect on grapes?
Clouds fog and mist block sunlight
What is soil’s affect on grapes?
Soil stores water and nutrients and can affect temperature
What are mountains affect on grapes?
Mountains shield grapes from from clouds, rain and cold winds
What are stone’s affect on grapes?
Stones can absorb heat and make vinyards warmer
What is air’s affect on grapes?
Air affects temperature of the climate
What is drought’s affect on grapes?
Vines will be unable to ripen and might die
What is high levels of rain’s affect on grapes?
High levels of moisture can help fungal diseases spread and cause grapes to swell
What is hail’s affect on grapes?
Hail can cause significant damage to vines and grapes
What is frost’s affect on grapes?
Frost can kill vines new growth
Training and pruning
Vines are trained on trellises so they can be harvested and pruned so they can retain their required shape