Bubbles

Effervescence in wine is the development of bubbles (perlage) after opening a bottle of wine as a result of the release of carbon dioxide. Carbon dioxide is a gaseous substance at room temperature, but it dissolves very easily in aqueous solutions, such as wine. Opening the bottle releases the gas, whose bubbles create the characteristic foam of these wines. In semi-sparkling and sparkling wines, the carbon dioxide bubbles (also called pérlage) create the foam, enhance the aromas and the brightness of the color, and reinforce the sensation of freshness on the palate that is characteristic of these wines. The ideal bubbles are fine, numerous, and persistent. They create a fine foam, more evanescent in semi-sparkling wines and more persistent in quality sparkling wines, especially if made using the traditional method. Deviations from these ideal conditions (sparsed, coarser, or shorter-lived bubbles) negatively impact the judging and scoring of the wine under review. The number, finesse, and persistence of bubbles in wine are due not to pressure, but to the structure of the wine itself. At the lowest end of the structure scale is distilled water. If supersaturated with carbon dioxide, it immediately and violently releases all the gas when the pressure is released. As the dissolved substances in the wine increase, and therefore the wine's structure and complexity increase, physical properties such as density, viscosity, and surface tension ensure that the release of bubbles after opening the bottle occurs continuously and gradually. At the same pressure, a long-aged classic method sparkling wine will have more numerous, finer, and more persistent bubbles than a younger, lighter sparkling wine. Quality sparkling wines can be produced using two methods:

Classic Method (traditional, champenoise): used for the production of Champagne and higher quality sparkling wines, it involves refermenting the wine in the bottle.
Charmat Method (Martinotti): characterized by shorter times and costs, it involves refermenting the wine in an autoclave.

Metodo Classico is excellent with fish and seafood dishes. It's important to remember, however, that the tastier the dish, the more assertive the sparkling wine should be. A simple but excellent pairing is with scampi or smoked salmon. The iodine in fish finds a faithful companion in the characteristic acidity of the bubbles. It pairs well with all cured meats, but Metodo Classico and Culatello is a truly excellent pairing. As an aperitif and to accompany appetizers; paired with desserts, especially leavened ones and creams (the bubbles help "degrease" the butteriness of the dessert), and excluding those with more intense and complex flavors, such as chocolate, and ice cream, both due to the temperature and the strong aroma of the fruit and the structure in the case of creams.