Dosage
Dosage (doh-SAHJ) is the degree of sweetness of the liqueur d’expédition (a combination of sugar and reserve wine) added at the very end in the making of a Champagne wine. The extent of the sugar in the dosage determines whether a Champagne wine will be Brut, Extra Dry, Demi-Sec, and so on. Over the last fifteen years, dosage levels in Brut Champagne wines (one of the least sweet) have dropped an average of 2.8 grams per liter. The rise in temperatures caused by climate change means that the Champenois are harvesting riper grapes; in addition, they are leaving the wines on the yeast lees for longer, both of which mitigate against the need for as much sugar as in the past.