Which temperature is correct for ripening white grapes?

Which temperature is correct for ripening white grapes?

• A. 66°F
• B. 60°F
• C. 68°F
• D. 65°F

Answer: (A)

Temperature during ripening controls how quickly grapes accumulate sugars, how acidity is retained, and how aromas develop. For white grapes, a moderate warmth is ideal: enough heat to drive ripening and flavor formation, but not so much that acidity drops or delicate aromatic compounds are lost. In the mid-60s Fahrenheit, around 66°F, you get that balance—warm enough to progress ripening steadily while preserving the fresh, zesty character white wines rely on. If it’s much cooler, like 60°F, ripening slows and flavors can stay underdeveloped; if it’s warmer, such as 68°F, you risk faster sugar buildup with diminishing acidity and overly softened aromatics. Hence, 66°F is the best target.

Temperature during ripening controls how quickly grapes accumulate sugars, how acidity is retained, and how aromas develop. For white grapes, a moderate warmth is ideal: enough heat to drive ripening and flavor formation, but not so much that acidity drops or delicate aromatic compounds are lost. In the mid-60s Fahrenheit, around 66°F, you get that balance—warm enough to progress ripening steadily while preserving the fresh, zesty character white wines rely on. If it’s much cooler, like 60°F, ripening slows and flavors can stay underdeveloped; if it’s warmer, such as 68°F, you risk faster sugar buildup with diminishing acidity and overly softened aromatics. Hence, 66°F is the best target.