What is the purpose of adding sugar during chaptalization?

Chaptalization is the process of adding sugar to grape must before fermentation to increase the final alcohol content of the wine. This technique is particularly useful in regions where grapes do not achieve optimal ripeness and, consequently, have lower natural sugar levels. By adding sugar, winemakers ensure that the fermentation process results in a higher alcohol concentration in the finished wine, leading to a more balanced and full-bodied product.

Enhancing acidity, clarifying wine, or improving flavors are not the primary objectives of chaptalization. While these factors can certainly influence the overall quality and profile of wine, the core purpose of adding sugar in this context is directly tied to boosting the alcohol level. Therefore, the correct answer identifies the primary goal of this winemaking practice effectively.