The cooper is the other great cognac alchemist, transforming the oak into real aromatic gold.
First, he refines for several years his oak staves outdoors before planing and cutting and get the famous staves. They will then be assembled, bent, heated and then rimmed to form a barrel. The cooper makes a selection of origins of the oaks,
to a sorting according to its porosity and thus its ability to oxidize the eaux-de-vie during aging, to a more or less long and more or less strong heating to constantly develop new aromatic palettes for the masters of Chai. It also keeps track of the barrels,
repairs them if necessary and markets used barrels.
He can also extend his expertise from cooper to lightbox to make large containers. Conical trunk tanks often made to measure and can contain from one thousand to fifty thousand liters and are used especially for weddings.
Source : culture.cognac.fr