Why do they pick grapes at night?

Answered by Michael Blake

Picking grapes at night has become a common practice in the industry, and there are several reasons behind this trend. One of the main reasons is the energy efficiency it offers. By picking grapes at night, winemakers can take advantage of cooler temperatures, which in turn reduces the need for energy-intensive cooling processes. This is particularly beneficial for wineries that use cold maceration, as they can avoid the additional energy required to cool down the grapes.

Furthermore, harvesting grapes at night ensures that all the grapes are at the same temperature. This is important because temperature variations can affect the quality and consistency of the resulting wine. When grapes are picked during the day, they are exposed to higher temperatures, which can lead to uneven ripening and variations in sugar levels. By picking at night, winemakers can ensure that all the grapes are uniformly cool, resulting in more consistent flavors and characteristics in the final wine.

In addition to energy efficiency and temperature control, picking grapes at night also has other benefits for winemaking. For instance, night harvesting can help preserve the freshness and acidity of the grapes. When grapes are picked during the cooler nighttime temperatures, they retain more of their natural acidity, which is crucial for producing balanced and vibrant wines. This is especially important for white wines and wines, which rely on acidity to provide structure and balance.

Moreover, harvesting at night can also contribute to better overall wine quality. The cooler temperatures help to slow down the oxidation process, preserving the freshness and aromas of the grapes. This is particularly advantageous for delicate grape varieties that are prone to oxidation, such as Pinot Noir or Sauvignon Blanc. By picking at night, winemakers can capture the grapes' optimal flavor profiles and minimize the risk of spoilage or loss of delicate aromas.

Aside from the technical aspects, there is also a practical reason for picking grapes at night. The cooler temperatures make it more comfortable for the harvest workers, who often have to endure long hours in the vineyards. Working in lower temperatures can reduce the physical strain and fatigue, allowing the workers to perform their tasks more efficiently and effectively.

Picking grapes at night offers several advantages for winemakers. It allows for energy efficiency by eliminating the need for cooling processes, ensures uniform temperature for all grapes, preserves freshness and acidity, and contributes to better overall wine quality. Additionally, it provides a more comfortable working environment for the harvest workers. the practice of harvesting grapes at night has become increasingly popular in the wine industry, as it combines practicality and efficiency with the goal of producing the best possible wines.