That's right, yeast is arguably the most important ingredient in making beer.
Ironically, it is also the one most often over-looked. The vast majority of
brewers out there make their beer with dried yeast of essentially unknown
origin. Although this will certainly produce a good beer in most cases,
experimenting with liquid yeasts can give the homebrewer yet another vehicle
which allows him or her to tailor the beer exactly to his or her tastes. Unlike
mashing
, another vehicle which allows one to tailer the beer, using a variety of quality yeast strains is
something that everyone can do.