Which term describes the traditional method of sparkling wine production that includes secondary fermentation in the bottle?

• A. Charmat Method
• B. Tank Method
• C. Carbonation Method
• D. Methode Champenoise

Answer: (D)

The traditional method is the one where secondary fermentation happens in the bottle, creating the bubbles and adding complexity from aging on the lees. This approach, called Methode Champenoise, starts with a base wine, then a tirage liqueur (sugar and yeast) is added to trigger a second fermentation inside each sealed bottle. The CO2 produced carbonates the wine, and aging on the lees develops richer flavors. To keep the wine clear, the bottles are gradually tilted and rotated to collect the yeast near the cork (riddling), then the sediment is expelled in a disgorgement, and a dosage may be added to adjust sweetness before final corking. This method is the hallmark of Champagne and many prestige sparklers, and it contrasts with other methods that either ferment in a tank or inject CO2 to carbonate the wine.