8. Fermentation

This is a picture of wine. This wine is a product of the fermentation of grapes. Fermentation is a metabolic process that converts sugar to acids, gases, or alcohol. In this case, the sugar was the grapes and the conversion was to alcohol. To create wine, heat is produced during the fermentation process. Usually, higher heats extract more flavors. Red wines, like the one above, can spend up to 30 days fermenting in order to create the perfect wine. Fermentation can occur in yeast to create bread, in milk to create yogurt and cheese, and in many other foods.