What is the main purpose of fining in winemaking?

Fining is a key process in winemaking that primarily serves to clarify the wine. This involves the addition of agents that bind with unwanted particles, such as proteins, tannins, and other compounds, which can create haze, cloudiness, or off-flavors in the final product. By removing these unwanted materials, fining helps produce a clearer, more visually appealing wine while also contributing to its stability and overall quality.

In the context of enhancing fragrance, increasing alcohol content, or improving aging potential, these aspects are typically achieved through different processes in winemaking. Enhancing fragrance involves careful selection of grape varieties and fermentation practices, increasing alcohol content is generally a result of fermentation or adjusting sugar levels, and aging potential is influenced by factors such as grape quality, oak treatment, and overall wine structure. Thus, the main purpose of fining distinctly relates to the clarification of wine, making it the correct answer.