First "guide" - not much of a guide but hey thought i'd toss it out there. I did a search for "Fras Siabi" and nothing came back so I am to assume this has never been posted before other than in the exploit section where it was not mentioned you could sell these for a hefty profit.
There is a craze going around, and was posted in the exploit section:
http://www.ownedcore.com/forums/worl...4-get-big.html (Get Big)
First you need an icecrown citadel lock out to at least saurfang (first wing cleared). Once you have that, there is a gnome named Brazie Getz who sells this beer for extremely cheap. You can buy 100 beers per hour due to the 5 instance lockout/hour rule.
Right now on a high population server i am easily selling them for 25g/piece and have made 5kg just today.
Just spam in trade you're selling these on the auction house and they should get bought pretty quick!
Enjoy!!