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 must of such fruit, it may be referred to as a "fruit brandy" or "fruit spirit" or named using the specific fruit, such as "peach brandy", rather than just generically as "brandy". If pomace is the raw material, the beverage may be called "pomace brandy", "marc brandy", "grape marc", "fruit marc spirit", or "grape marc spirit"; "marc" being the pulp residue after the juice has been pressed from the fruit. Grape pomace brandy may be designated as "grappa" or "grappa brandy". Apple brandy may be referred to as "applejack". There is also a product called "grain brandy" that is made