Wine is a type of fermented wine, and during the production process, some wines may experience foaming and secondary fermentation. These sparkling wines are usually more lively and interesting, making them popular. So, what is the principle of wine foaming and secondary fermentation?

Firstly, we need to understand the fermentation process of wine. The fermentation of wine is the process by which yeast converts the sugar in grape juice into alcohol and carbon dioxide. In the usual wine making process, after one fermentation, yeast will settle at the bottom, and then the wine will be filtered out from the settled yeast, resulting in a sparkling wine.

However, in some cases, wine may experience foaming and secondary fermentation. This is because after a fermentation is completed, some wines are sealed in bottles to prevent the release of carbon dioxide. At this point, if there are still some unfermented sugars in the wine, the yeast will continue to ferment these sugars and produce carbon dioxide. Due to the closure of the bottle, carbon dioxide cannot escape and will be dissolved in the wine, forming a foaming phenomenon.

Another principle of wine sparkling is to add carbon dioxide to the wine to make it sparkling. This method is widely used in the production of commercial sparkling wine. In this case, the wine will be injected with carbon dioxide during the production process to dissolve it in the wine. When the bottle is opened, carbon dioxide is quickly released, creating a foaming effect.

Whether through secondary fermentation or the addition of carbon dioxide, sparkling wine has a more complex and rich taste. The carbon dioxide in sparkling wine stimulates the taste buds, making the taste more lively and fresh. In addition, sparkling wine also has a longer shelf life because carbon dioxide can prevent oxygen from coming into contact with the wine, thereby slowing down the rate of oxidation.

In summary, the principles of wine foaming and secondary fermentation can be achieved through natural secondary fermentation or artificial addition of carbon dioxide. Regardless of the method used, sparkling wine has become a unique and popular beverage, bringing people more taste experiences.