Simply, Zero dosage, also known as ‘dosage zéro’, ‘brut nature’ or even ‘pas dosé’ has no additional sugar added to the final wine. Some Champagne houses use the world ‘pure’ on their labels for good reason. To make this style well requires very high quality grapes and skilled winemaking. The larger houses may choose to leave these wines on lees for longer to add complexity, fullness and mouth feel. There is no winemaking artifice in these wines in which to cover up a poorly made wine or poor quality grapes. This also means that the wines are more reflective of the grape variety, where they were grown and the vintage.