Harvesting Wine Grapes
Harvesting Wine Grapes at Night
Growers typically harvest wine grapes at night or very early in the morning, when temperatures are coolest, to preserve freshness, prevent premature fermentation from the sun’s heat, and maintain acidity, ensuring better flavor and balance in the wine. Night harvesting benefits both red and white wine grapes by picking them cool to preserve freshness, acidity, and aromas, but it’s crucial for delicate white grapes such as Chardonnay to prevent their thin skins from bursting and to maintain flavors. White wine grapes generally have thinner skins than red wine grapes and are more likely to burst when handled while warm, as they expand with heat and become more fragile. Red wine grapes have thicker skins and are less delicate than whites. Red wine grapes such as Shiraz and Cabernet benefit from the cool temperatures for aroma retention and easier handling, especially when making lighter styles or rosé.
Why Night Harvesting is Preferred
Temperature Control. Cooler grapes prevent spontaneous fermentation and oxidation, preserving delicate aromas and flavors.
Click on the following topics for more information on harvesting wine grapes.
