Klaus' Beer Boys are called in when Francine accidentally turns Steve's invention project into beer in "Stan Fixes a Shingle".
On sampling the beer, Tony declares it to really be beer. Meg identifies the IPA to be over 8% alcohol. 'The Professor' figures out the process that involved dirty laundry in Steve's ethanol project.
Although Steve thinks his project is ruined, Francine and the boys decide to drink the beer. The following morning, she awakens without a hangover and brings the news to Steve. He isn't impressed until she points out that hangover free beer is something that people have been trying to create for centuries, and he gets fully on board with the project. Bringing back the boys, they recreate the formula, but find that the hangover effects are not only delayed, but made significantly worse.
- Tony is voiced by Joe Chandler.
- Meg is voiced by Natalie Palamides.
- 'The professor' is voiced by Taliesin Jaffe.