One of the easiest trades to raise. I usually just carry
Flask of Sylvan Berry Juice and
Faydwer Porter, though tempers are the main reason for brewing any higher. But what you are looking for is anything involving a shot glass most likely. So Halfling Stouters, Bleeding Brain or Ginesh
http://wiki.project1999.com/Brewing (all .2). Buy lots of fish for leveling.