This is a gag-worthy story, 7 cent Brewery is the beer producing company which pulls fluff out of their bodily orifice and thinks to themselves, "This'll make some good beer", disgusting.

The Victoria, Australia-based company have released an advertisement on Youtube for their new ingredient for brewing beer.
The advertisement shows the beer production backwards starting from the finished product and showing the stages in between until finally revealing yeast from belly button lint being used to help produce the beer. Other Ingredients of the beer include fresh orange zest and toasted coriander seeds, you know to mask some of the belly button lint stench.

Their tag line for the new product is 'sometimes to go forward, you need to be a little backward', nail on the head.
They aim to launch the belly button lint beer at the Great Australasian Beer SpecTAPular (GABS).