he Metodo Classico (traditional method) is the process used in the Champagne region of France to produce  Champagne. It is also the method used in various French regions to produce sparkling wines (not called “Champagne”), in Spain to produce Cava, in Portugal to produce Espumante and in Italy to produce Franciacorta.

The method is known as the méthode champenoise, but the Champagne producers have lobbied the European Union to restrict the use of that term within the EU only to wines produced in Champagne...