All of us know that, wine is made from fermentation of grapes. During the wine making process, sediments are found especially in case of old wines or it may not be properly clarified or filtered. So in order to remove sediments, decanting process of wine is necessary. Decanters are being used all over the world for proper filtration of wine, which are varied in shape as well as design.
In ancient time, it was firstly Romans who used glasses for decanting. After the great fall of Rome Empire, production level of glass went down. Then after, Europeans started using bronze, silver and gold for decanting process. Generally, what happens is that, liquid is poured into the decanter, with a view to separate small volume of sediment. In this process, the sediments remains in the original, where new liquid is found ready in decanter.
This process helps wine to took breathe. Besides it softens the tone of tannin like elements. We are of the opinion that decanting procedure does not really hamper the taste of wine instead it just helps wine to breathe. Chemical compounds in the wine as well as the sulfites go under change, once the procedure for oxidation starts.
In modern era, most of the wine makers do not feel the need to have decanting process. This is probably because of the fact that, sediments are not left in most of the wines. For older wines, especially the red wines which are having sediments, it is advisable that, must go through the decanting procedures. One cannot make exact prediction about how much sediment it really contains. In simple words, when the wine is poured into another vessel, it is called as a decanting process of wine.
In a nutshell, we can argue that experimentation of decanting on the part of the wine makers is at discretion. One cannot force to undergo the process. So it is always better to learn through practice.