Doux
Sugar 50+ g/L; very sweet, rare.
What is Doux? Doux is the sweetest official sweetness category for sparkling wine under EU regulation, containing more than 50 grams of residual sugar per liter. The sweetness is achieved through dosage, a mixture of wine and cane sugar known as liqueur d'expedition, which is added after disgorgement. Once the dominant style of Champagne in the 19th century, Doux is now rarely produced and survives mostly as a historical curiosity and a specialist niche.
Where Doux Sits on the Sweetness Scale
The EU sparkling-wine sweetness scale is standardized by Commission Regulation (EC) No 607/2009, which gives producers and consumers a single shared vocabulary across member states. The full ladder runs from Brut Nature or Brut Zero (less than 3 g/L), through Extra Brut (less than 6 g/L), Brut (less than 12 g/L), Extra Dry or Extra Sec (12-17 g/L), Sec (17-32 g/L), Demi-Sec (32-50 g/L), and finally Doux at more than 50 g/L.
What defines that sweetness in practice is the dosage. After the second fermentation and disgorgement, a small amount of liqueur d'expedition is added to the bottle. Because no active yeast remains at that stage, the added sugar is not refermented and stays in the wine as permanent residual sugar. This is a different mechanism from sweet still wines, which are typically made by late harvesting, drying grapes in the style of passito, or arresting fermentation with cold.
A Style Rooted in the 19th Century
Throughout the 19th and early 20th centuries, Champagne was generally far sweeter than the bone-dry wines that dominate the category today, and Doux-level bottlings were common on fine tables across Europe. Houses tailored their sweetness to the destination market and named the styles accordingly. The famously rich 'Gout russe', shipped to Imperial Russia, carried roughly 200 to 300 g/L of sugar, reflecting a 19th-century Russian taste for opulent, dessert-like fizz.
Modern Champagne has moved in the opposite direction. Brut is now the default commercial style, and producers using the Doux designation are unusual enough to count as commercial curiosities. When you do encounter a true Doux, it is often a deliberate nod to the historical archive or a specialist cuvee aimed at collectors.
How to Serve It
Given its sugar level, Doux is not a wine for the start of a meal. It is best treated as a dessert wine in its own right, much like Demi-Sec, and works well alongside fruit-based desserts, patisserie, or a cheese plate where the sweetness balances saltier or bluer styles.
Serve it well chilled, around 6 to 8 degrees Celsius, in a tulip glass that gives the aromatics room to open. Because the dosage carries the wine's character as much as the base cuvee does, a good Doux should feel rich but never cloying, with the mousse and acidity keeping the sugar in check.
