The History of Beer and Wine Production At the time ... into pyruvate — is the first major step of fermentation or respiration in cells. It is an ancient metabolic pathway that probably ...

This step releases the sugars from the ... with yeast. The fermentation process takes longer than with beer, often several months. The grapes are first crushed to release their juice and then ...

Though both beer and mead are fermented, to get to the step of fermentation, beer requires a bit more prep work as boiling must take place before fermentation begins. This kind of extreme heat isn ...