WSET Level 2 Practice Question · Episode 12
Show Answer & Explanation (try the quiz first)
Practice Question
What is the primary biological reason that wines produced in a 'Cool Climate' generally maintain higher levels of acidity compared to those from a 'Warm Climate'?
- A. The vine consumes less acid through the process of respiration.
- B. High rainfall levels dilute the grape juice, making it taste more sour.
- C. Lower potential alcohol levels inherently emphasize the sour taste.
- D. High-acid wines are never aged in oak barrels.
Answer & Explanation
Answer: A. The vine consumes less acid through the process of respiration. Explanation: As grapes ripen, they consume their own Acidity as an energy source through a biological process called respiration. In a Warm Climate, this process is accelerated by the heat, causing the acid to vanish rapidly. However, in a Cool Climate (or in regions with cool nights), the rate of respiration significantly slows down, allowing the grape to retain the vibrant, refreshing acidity that defines high-quality wine.
Expert Exam Tip
[Trap]: Do not assume that "High acidity always means the vineyard is in a freezing location." Even in hot regions, if the Altitude is high or the Diurnal Range is wide, a wine can still possess high acidity. [Tip]: In the L2 exam, if you see the terms 'Acid Preservation' or 'Cool Climate', immediately link them to the 'Slower consumption of acid' keyword. Think of cool air as a 'refrigerator' that keeps the grape’s natural zest intact.