What is the function of fining in winemaking?

Fining plays a crucial role in the winemaking process, primarily focused on clarifying and stabilizing the wine. This process involves adding specific substances called fining agents to the wine. These agents bind with unwanted particles such as tannins, proteins, and phenolics, which can cause haze or cloudiness in the finished product. Once the fining agents are added, they facilitate the aggregation of these particles, making them heavy enough to settle at the bottom of the tank or barrel. This results in a clearer wine that not only looks more appealing but also has improved shelf stability.

Through fining, winemakers can enhance the overall quality of the wine, ensuring that it is free from undesirable elements that may negatively affect both its appearance and mouthfeel. This practice is particularly important for white wines, which are often expected to be bright and clear.