"Twist" Aerator is like 6 aerators in one! Pick a number on the metal twistable band to choose a setting, and pour through the Twist to decant the wine. Using Bernoulli's Principle, the Twist circulates air through your wine, allowing it to breathe at a level of your choice. This triggers oxidation and the evaporation of certain phenolic compounds, improving the overall flavor and harmony of the wine. Unlike a traditional decanter, the Twist allows you to aerate one glass at a time, to better account for individual preferences.