I'm an unemployed developer, and I saw this question the other day - give this a try!
http://yeastbot-on-rails.herokuapp.com/
It needs to be improved as the search function is a bit iffy (for example, partial matches don't work at the moment: searching for Oktoberfest
only returns some of the yeasts that match because some are written as Oktoberfest/Märzen
. I will speak with the person who maintains the Yeastbot DB and figure out a way to make things work smoother. Also the design will improve but...anyway, hope it helps! If there's some other feature you'd like to see or a way to make it work better, please let me know :)
edit:
since there are probably a lot of stackoverflow users here, you can find the git repository here should you want to contribute!