WSET Level 2 Practice Question · Episode 40
Show Answer & Explanation (try the quiz first)
Practice Question
What is the fundamental technical reason why a Port wine from Portugal typically tastes 'Sweet'?
- A. A large amount of sugar is added after fermentation is fully complete.
- B. During fermentation, high-strength grape spirit is added, which kills the yeast and stops the fermentation.
- C. Grapes are dried in a warm climate to evaporate water before fermentation begins.
- D. Low acidity and low tannins naturally make the sugar feel more intense.
Answer & Explanation
Answer: B. During fermentation, high-strength grape spirit is added, which kills the yeast and stops the fermentation. Explanation: The timing of fortification is the defining factor for Port. While the must is still fermenting, high-alcohol grape spirit (around 77% abv) is added. This raises the overall alcohol to 19-22%, which kills the yeast instantly. Because the yeast stops working, the natural grape sugars that haven't been converted to alcohol remain in the wine, creating Port's signature lush sweetness.
Expert Exam Tip
[Trap]: Do not assume all Sherry is sweet. Fino and Oloroso are fundamentally 'Dry' wines. (Sweetened versions like 'Cream Sherry' are separate blends). [Tip]: Link 'Bread Dough' and 'Flor' to 'Fino Sherry'. Link 'Nutty' and 'Caramel' to 'Tawny Port' or 'Oloroso'. Timing is everything.