Pouring Sparkling Wine Correctly: Why the Pouring Angle Matters

Sparkling Wine Rosé

Watching bubbles rise in a glass is an essential part of the sparkling wine experience. Yet behind this seemingly simple act lies a complex interplay of physical and chemical processes. These processes have a direct impact on the wine’s mousse, carbonation, and ultimately the sensory experience in the glass.

A recent scientific study on bubble behaviour shows that the way sparkling wine is poured can significantly influence how much dissolved CO₂ remains in the wine.

At the 18th Enoforum Conference in Vicenza, Gérard Liger-Belair from the University of Reims Champagne-Ardenne presented his lecture, “Champagne: the Mysteries of Efferve-Science.” Using state-of-the-art infrared imaging, he investigated how much carbon dioxide is lost during pouring and which serving conditions best preserve it. While the research focused on Champagne, the findings are equally relevant to sparkling wines such as Sekt, Cava, Franciacorta, and Prosecco.

Infrared Imaging Reveals Hidden CO₂ Losses in Sparkling wine

Champagne contains large amounts of dissolved carbon dioxide (CO₂), which is responsible for its fine stream of bubbles. Although this gas is invisible to the naked eye, infrared cameras make its behaviour clearly visible.

When sparkling wine is poured into an upright glass, strong turbulence develops. Infrared images reveal streams rising from the glass, making it possible to observe how much CO₂ escapes during the pouring process.

Why Carbon Dioxide Matters for Mousse and Aroma

The loss of CO₂ has a direct impact on the sensory profile of sparkling wine. As carbonation decreases, the mousse becomes less persistent, the tingling sensation on the palate is reduced, and the foam dissipates more quickly.

Bubbles also play a crucial role in aroma perception. As they rise through the wine, they carry volatile aroma compounds to the surface. When the bubbles burst, these compounds are released into the headspace above the glass and become available to the nose. Fewer bubbles therefore often mean lower aromatic intensity.

A Simple Solution: Tilt the Glass

Fortunately, reducing CO₂ loss is remarkably simple.

When a sparkling wine glass or Champagne glass is tilted at an angle of approximately 45 degrees during pouring, significantly less turbulence is created. As a result, more carbon dioxide remains dissolved in the wine.

Liger-Belair’s research showed that when Champagne is poured into an upright glass, around one-third of the dissolved CO₂ can be lost. By contrast, pouring into a tilted glass reduces this loss to approximately one-fifth.

While the difference may seem small, its impact on the wine is noticeable. The sparkling wine displays a longer-lasting, more even mousse and retains a fresher, livelier character in the glass.

Conclusion

Small details can have a surprisingly large impact on the enjoyment of sparkling wine. Research shows that the pouring angle alone influences how much carbon dioxide remains dissolved in the wine.

Whether serving Champagne, Sekt, Cava, or another sparkling wine, tilting the glass slightly while pouring helps preserve carbonation, prolongs the mousse, and enhances aromatic expression. Sometimes, achieving a better sparkling wine experience is as simple as changing the angle of the glass.