Yeast From Beards

This might be a little much. Rogue's brewmaster is overseeing the production of a beer the yeast for which was extracted from his beard, which has not been shaved since 1978.

The Rogue people in this article are giving a mirabile visu! spin to finding a viable beer yeast in his beard, but I suppose if you were going to find such a yeast in anyone's beard, in would be that of a man who spends all day every day in front of beer.