Rosé wine is not a mixture of red and white wine, that is prohibited by law, although there is one exception, the rosé Champagne, which blends red and white wines. In fact, rosé wine is obtained from black grapes with colourless or slightly coloured juice, to which is applied either direct vinification or a short maceration. In the first case, the grapes are pressed immediately after the harvest and vinified in the same way as white wines. In the second case, the grapes are macerated for a few hours before being bled in the vat. This practice consists of extracting some of the juice before the grapes start to ferment into red wine.