Deliver the barrel to Dran Droffers in Orgrimmar.
I have taken the extra step of securing not only Dran's packaged ripple in the barrel, but also the extra bottles of ripple he is purloining. While I may not hold Dran very highly, there is nothing worse than jostled ripple. You're welcome.
Now, deliver yon barrel to Dran Droffers in his salvage emporium in Orgrimmar. Pray tell, please extend my warmest greetings to Malton; let him know that should he ever thirst for fine drink and finer drinking companions, we would be honored with his visit.