The Beer Fermentation

All of the steps described above are performed to provide a suitable growth medium for the ethanol-producing yeast. Before yeast is added, however, the wort is first aerated or sparged with sterile air. Even though the beer fermentation eventually becomes an anaerobic process, creating an aerobic environment at the outset jump-starts the yeast and promotes a more rapid entry into a logarithmic growth phase. Importantly, oxygen also is necessary for biosynthesis of cell membrane lipids that are essential for growth of yeast in wort.

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Brew Your Own Beer

Brew Your Own Beer

Discover How To Become Your Own Brew Master, With Brew Your Own Beer. It takes more than a recipe to make a great beer. Just using the right ingredients doesn't mean your beer will taste like it was meant to. Most of the time it’s the way a beer is made and served that makes it either an exceptional beer or one that gets dumped into the nearest flower pot.

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