What was the beer that neil Patrick harris and kal penn were drinking in the car in the movie Harold and Kumar 2 Escape from Guantanimo bay?

In "Harold & Kumar Escape from Guantanamo Bay," Neil Patrick Harris and Kal Penn's characters are seen drinking a fictional beer called "Kumquat Ale." This humorous nod fits the film's comedic style. The beer is part of a scene that showcases the quirky and outrageous adventures of the characters.