Talk to Dietrich in Subway Town across from the management office upstairs to begin this job.
Note: This job is where you can find the Secret Developer Graffiti Room to get the Dev Graffiti achievement/trophy.
When you get to the end of the distillery, put the jar in the tube with an open door and hit the switch. This will trigger a wave of mutants. When it's done, take out the jug and put in another one and start it up again. Fight off another wave, and then when you get the second bottle a door behind you will open so you can head back to Dietrich.
Collector Card: Portman - As your walking through the caves to the distillery, it's on a box on the right.
Regenerative Infusion Recipe