Which statement best describes Riesling acidity in the Mosel?

• A. It is kept high due to a warm maritime climate
• B. It is kept high due to a cool continental climate with steep slopes and river influence
• C. It is low due to heat
• D. It is unaffected by climate

Answer: (B)

Riesling’s high acidity in Mosel comes from the region’s cool growing conditions combined with vineyard site effects. The Mosel climate tends toward cool temperatures, which slows grape ripening and helps preserve acids. Add steep slopes that face the sun and the cooling yet reflective influence of the Mosel River, and grapes hang longer without overripe sugars. This long hang time lets acidity stay strong while flavors advance, creating the characteristic crisp, high-acid Riesling of the Mosel.

That’s why the statement describing a cool continental climate with steep slopes and river influence is the best fit. A warm maritime climate would tend to reduce the crisp acidity, and saying acidity is low due to heat or that climate has no effect ignores the clear role climate and site play in Mosel Riesling.