As an expert sommelier and brewer, I can confidently say that yes, expensive champagne does indeed have bubbles. In fact, the presence of bubbles is one of the defining characteristics of champagne and sparkling wines in general. These bubbles, also known as carbonation, are created during the fermentation process.
During the production of champagne, a second fermentation takes place in the bottle, where sugar and yeast are added to the base wine. This triggers the fermentation process, producing alcohol and carbon dioxide. The carbon dioxide is trapped inside the bottle, creating the bubbles we associate with champagne.
It is worth noting that the quality of the bubbles in champagne can vary depending on several factors, including the production methods, aging process, and overall quality of the wine. Expensive champagnes often undergo more rigorous production techniques and longer aging periods, which can result in a higher quality of bubbles.
When comparing the bubbles in expensive champagne to those in a lower-priced alternative, there are subtle differences that can be observed. Acoustical data, as mentioned in the question, can provide insights into the characteristics of the bubbles. In a study conducted by researchers at the University of Reims in France, it was found that the bubbles in fancier champagne tend to be slightly smaller in size compared to cheaper alternatives.
Additionally, the study noted that there is less variation in bubble size in the higher-end champagne, indicating a more consistent and refined effervescence. This can contribute to a smoother and more elegant mouthfeel. The study also found that there was generally more bubble activity in the expensive champagne, suggesting a livelier and more vibrant sensory experience.
It is important to note that the differences in bubble size and activity are relatively subtle, with variations in diameter only amounting to about 5% between the two wines. However, these nuances can be discerned by experts and enthusiasts who pay close attention to the sensory aspects of champagne tasting.
In my personal experience, I have had the opportunity to taste a wide range of champagnes, from affordable options to high-end bottles. While all champagnes exhibit bubbles, there is undoubtedly a noticeable difference in the quality and overall experience when indulging in an expensive champagne. The bubbles in these premium offerings tend to be more refined, elegant, and persistent, contributing to a heightened sensory pleasure.
Expensive champagne does indeed have bubbles, and the quality of these bubbles can vary depending on the production methods and overall quality of the wine. While the differences may be subtle, experts and enthusiasts can discern variations in bubble size, consistency, and activity. The presence of bubbles is a key characteristic of champagne and contributes to the overall sensory experience when enjoying this luxurious beverage.