The techniques of sparkling winemaking did not originate with the Benedictine monk Dom Pérignon, nor was the first purposely sparkling wine produced in the region of Champagne. Regardless, through centuries of refinement Champagne has become the world’s leading sparkling wine and the vinous embodiment of luxury and celebration.
So in the "Viticulture and Climate in Champagne" section, it says "CIVC set a limit of 102 liters of must for every 160 kg of grapes, or 2,550 liters per 4,000 kg" but later in "The Méthode Champenoise" section it sates "As previously mentioned, extraction is limited to 102 liters from 160 kg of must, or 2,550 liters from 4,000 kg." So is it 102 liters of juice from 160 kg of must or 102 liters of must from 160 kg of grapes?