A wine aerator is a device designed to enhance the flavor and aroma of wine by introducing air into it. When wine is poured through the aerator, it increases the surface area exposed to oxygen, allowing the wine to breathe. This process can soften tannins and release volatile compounds, improving the overall tasting experience. Aerators come in various designs, including handheld models and those that fit directly onto a bottle. Some are even built into decanters. Using a wine aerator can be particularly beneficial for young or robust wines, which often require more aeration to reach their full potential.