"We were ahead of our time, being the first genuine brew bar in Dunedin," Duff said.
However, with the number of licensed premises in the Octagon exploding, the pair decided in 1997 to concentrate on brewing and moved the company to Great King St. They have been running down beer stocks and expect to make their last retail sales today.
The operation was originally known as Duffs Brewery, but media giant Twentieth Century Fox, makers of the cartoon series The Simpsons, objected to the name several years ago, because character Homer drank Duff-branded beer.
A year of negotiations ensued before the parties reached an agreement and the company was renamed McDuffs Brewery.
"For several years, every American tourist that came in asked "are you that Duff brewery?" ... the story was quite big in the States," Jenkins said.
Surprisingly, being in the north end of Dunedin, students were not their biggest customers, and the brewery supplied branded liquor outlets, pubs, cafes and members of the public filling their riggers. However, it is students the pair remember most fondly, noting there had never been any trouble and they still enjoyed meeting former students who stopped in to visit and recollect their university days.
Jenkins, a carpenter by trade, and Duff, a former mechanic, have no retirement plans other than catching up on jobs around their houses.
Duff said while a brewing consultant initially helped get the brewery started, they had since moved to "trial and error" to create recipes.
He said the pair had nine McDuff beer types, plus alcohol infused lemonade and ginger beer, but had not decided what to do with the McDuff's brand, or their recipes.