Especially in German-speaking countries common name for a produced according to certain quality criteria sparkling wine (Quality sparkling wine). Except for Champagne produced sparkling wines, even if they were produced according to champagne rules, must not call Champagne. This is not a question of quality, but the question origin, This also applies to the Spanish Cava, the Italian Spumante and French sparkling wines outside Champagne. The work steps are very similar and under champagne described. In contrast to champagne, the second fermentation of sparkling wine is often carried out in steel tanks in the pressure tank process, which named after the inventor Méthode charmat, The wine is in a pressure tank after addition of sugar and yeast fermented and also left a certain time on the yeast.