What type of harvesting method is predominantly used in Bordeaux?

The predominant harvesting method used in Bordeaux is machine harvesting. This approach aligns with the region's scale of vineyard operations, where efficiency and productivity are often prioritized to manage large areas of vineyard land. Machine harvesting allows wine producers to cover greater distances quickly, especially during the busy harvesting season, which is crucial for minimizing the time grapes are left on the vine and reducing the risk of over-ripening.

Additionally, machine harvesting can be particularly advantageous in regions with a diverse range of grape ripening times, as it allows for a rapid collection of grapes across various vineyard sites. This method has gained popularity in Bordeaux, especially for lower-tier wines and during certain harvest conditions.

Selective hand-picking, while employed in some premium estates for high-quality grapes and meticulous sorting, is not the most common method overall in the Bordeaux region. The other methods listed, such as tractor harvesting and animal-assisted harvesting, are not standard practices for the region's current viticultural industry, especially considering the need for efficiency and the availability of modern machines.