There are wine decanters, Wine Aerators, wine aerators pour, etc, so many products on the market, but generally we can divide them into two types: “Glass wine decanter” and “Plastic wine aerator”. The two types look completely different, naturally have completely different functions.
Glass wine decanter
1. "big belly" style
PS: it's not for old wine, as the air content in the "big belly" is too high, which can easily cause oxidation of the old wine and greatly reduce the flavor of the old wine.

2. "Slender strip" style
The decanter is slender and has a small bottom, and the contact area between the wine and oxygen is small. This is mainly used for decanting old wine. The long and thin decanter can reduce amount of oxygen contact. Just decant the sediment.

Plastic Wine Aerator
The Wine Aerator has a large aerating chamber and air intake system that utilizes the Bernoulli Effect to infuse your wine with the OPTIMAL amount of oxygen. you can taste the nuances in your wine, and aerate you wine in seconds, not hours. it is the perfect gift for wine lovers.
The Wine Aerator Pourer accelerates the aeration process like no other. Just put it on top of the bottle and pour the wine into the glass. So you don’t need to wait days to get your wine tasting smoother.
The rubber stopper is tapered and ribbed to create a leak-free seal for wine bottles of all sizes and the acrylic pour spout is notched and ergonomically slanted for easy drip-less pouring. The aerator can be disassembled and run under water for easy cleaning.
The Aerating Pourer is manufactured with high quality materials, beautiful and functional, Its elegant design will add a level of refinement to your wine drinking experience