A wine decanter, as the name suggests, is a vessel used to decanter wine, usually for red wine.

The purpose of a wine decanter is generally twofold: to decanter the wine and to filter the residue (also known as bottle changing). There are many sizes and shapes of decanters, and a common decanter shape is one with a big belly and a narrow neck.

The way to use a wine decanter is to pour red wine into it and wait for about 20 minutes for the wine to oxidize in contact with the air before pouring it into a glass and drinking it. As red wine will bring in a little pomace when bottled, it needs to be filtered out before drinking, otherwise it will affect the taste. So by slowly pouring the red wine from the bottle into the decanter, the pomace at the bottom of the bottle stays in the bottle, a process also known as "bottle changing".

The role of the wine dispenser is twofold: one is to pour the right amount of wine, according to the scale of the dispenser, how much to drink how much to pour; the second is to let the open bottle of wine to save a little longer. After the white wine is opened, the alcohol aroma is easy to evaporate, and the use of a wine dispenser can avoid the contact between the wine and oxygen. There will be no need to keep opening the bottle every time you pour the wine. Reduce the opportunity for wine to come into contact with oxygen, and thus be able to keep the open bottle of wine for a longer period of time.