Sparkling wine

In Germany, a sparkling wine, that was produced with a second ferentation, is caled Sekt. During the second fermentation in the bottle, carbonic acid is formed. Sparkling wine must contain at least 10% by volume and must be secured by a wire basket and sometimes even with an Agraffe, due to the high pressure (at least 3 to 6 bar pressure). For every bottle of sparkling wine, the winemaker has to pay one euro of sparkling wine tax.