The globally patented Zazzol Wine Aerator uses multistage aeration that more effectively aerates wine as you pour. Other aerators only use a single aeration design. The unique design Best Wine Aerator in 3 steps: first wine is dispersed over a cone, then drains through 32 holes, and lastly air is injected into the tube before the wine exits the bottom and into the glass. The multistage aeration allowing the wine to spread out thoroughly and efficiently mixes oxygen with the wine to break down the tannins which can give the wine an overly astringent, bitter taste. The Zazzol's multi stage aeration provides a more balanced finish while enhancing the aromas and flavors for the ideal glass of wine, every time!