Any ideas?

well, I’m guessing the yeast from the brewing of Guinness is used instead of Burtons or Ind Coope or whatever it is.

...and you sound like Peter Kay.

Good things come to those who either love it or hate it.

that should totally be the slogan

guinness is just as divisive as marmite, they’re perfect bedfellows. i would now supply a love/hate venn diagram for the two products but i can’t be arsed and i don’t know how much they overlap.

and black pudding too.

altogether now “black foods are divisive!”

“guinness amirite”?

Guiness Armilite.