Originally, the wine cooper was the master cooper of a winery, who was responsible for the production, installation and maintenance of the barrels. The term was derived from cooperage (barrel making). This later developed into the responsibility for cellar work in winemaking. In Germany, the name wine merchant cooper was used until 1982, when the new job title of wine technologist was introduced in 2014. His or her area of responsibility includes receiving and pressing the grapes, controlling and monitoring the fermentation and ageing of the wines, as well as determining the time of bottling.
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