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The process of making wine is an age-old tradition and the result of a careful fermentation process. The alcoholic fermentation process is used to turn grape juice into wine, and it’s a fairly simple procedure that can be done at home with some basic equipment. In this article, we’ll walk you through the significance involved in making your own wine, or you can simply Chianti wine tasting (degustazione vino chianti) !
Alcoholic Fermentation
The alcoholic fermentation process is used in most wines, with the exception of some sparkling wine. Throughout this process, yeast cells called “active yeasts” convert sugar into alcohol and carbon dioxide gas (CO₂). The active yeast added to grape juice is responsible for converting glucose (sugar) into ethyl alcohol or ethanol through a chemical process called fermentation.
This process takes place in the absence of oxygen and is known as anaerobic respiration, which converts sugar into energy for yeast cells to live and multiply. The yeasts also produce heat while converting glucose into alcohol and CO₂ gas that causes a slight increase in temperature within the fermenting wine must (the juice before it ferments into wine). The temperature rise will often be noticeable due to the heat generated.
The alcoholic fermentation process is a natural and spontaneous reaction that occurs when active yeast cells come in contact with grape juice or any other sugar source, such as fruit puree, must, honey or molasses. Yeast cells can survive for many years by hibernating in a dormant state and will become active again when they come into contact with sugar. The types of yeast used for winemaking are Saccharomyces cerevisiae, Torulopsis candida, Kloeckera apiculata, and Hanseniaspora uvarum.
Conclusion
The alcoholic fermentation process is done when the yeast cells come in contact with grape juice or any other sugar source. The result of this chemical reaction will turn your must into wine, which you can enjoy!