Playing with beers and yeasts. Here is a map of yeasts that has convinced me that yeasts are on 256x256 coord chunks. That is, the yeast list changes discontinuously when crossing a 256-coord boundary.
I'm currently spending time dropping kettles around looking for yeasts, and building a map of what I find.
If you need lots of honey for brewing, check out these public apiaries. You can get 1000 honey and 1000 wax in 9 minutes. Of course, then you've got 2000 "stuff" in the RSO desert, but transportation's not my problem!