At present, there are four kinds of wine stoppers: pure cork, rubber cork, mixed cork and metal cock. As far as these four kinds are concerned, the best is the metal cock, which can play the greatest role in reducing the change of wine quality after bottling, and is very practical, basically without any professional training. The second place is cork. Although cork is a very primitive wine-making process, it can also bring many changes to the quality of wine. Depending on the origin of wine and the logs of cork used, the quality of wine will change slightly. This will definitely happen, and the service personnel should also be trained accordingly. The third place is mixed cork. The function of mixed cork on wine is basically the same as that of cork, but the difference is raw materials. Most mixed corks are made of reprocessed wood as raw materials, and there may be many different kinds of wood in a cork. The last one is the rubber stopper, which I don't like very much, because every time I open the wine with rubber stopper, it is very laborious, and the wine I have opened will have a little rubber smell. I don't know if it is psychological or just like this, but my colleagues all have the same experience, and everyone doesn't like rubber stopper. The appearance of wine pourers is used by non-professional service personnel, and there are few wine pourers in regular western restaurants. However, if the landlord wants to ask about the decanter, it is a very professional tool. This is a tool that the bartender must be able to use. Not all wines will play the best wine quality in the decanter. There are also many kinds of decanters in Tongli. We will see red wine decanters and white wine decanters. The function of the decanter is not only to sober up, but also to change bottles. For example, when the wooden wine stopper is broken when opening a bottle, you must use the decanter to change bottles. Another kind is to use the decanter for wines that are older in the opening year, because there will be pomace in the aged wine, so you must change bottles. I hope it will be useful to the landlord ...