Brandy is made from early grapes in order to achieve higher acid concentration and lower sugar levels. Base wine generally contains smaller amount (up to 20 mg/l) of sulphur than regular wines, as it creates undesired copper(II) sulfate in reaction with copper in the pot stills. The yeast sediment produced during the fermentation may or may not be kept in the wine, depending on the brandy style. Brandy is distilled from the base wine in two phases. In the first, large part of water and solids is removed from the base, obtaining so-called "low wine", basically a concentrated wine with 28–30%
Brandy from grain spirits. Within particular jurisdictions, there are specific regulatory requirements regarding the labelling of products identified as brandy. For example: Within the European Union, the German term "Weinbrand" is legally equivalent to the English term "brandy", but outside the German-speaking countries it is particularly used to designate brandy from Austria and Germany. The European Union and some other countries legally enforce the use of "Cognac" as the exclusive name for brandy produced and distilled in the Cognac area of France, and the name "Armagnac" for brandy from the Gascony area of France. Both must also be made using traditional