
So basically, I'm going to ferment Irn Bru with wine yeast and see how hideous it is. I invite you all to share the experience by way of my words and pictures. The recipe is terrifyingly complex: it involves boiling the Irn Bru to decarbonate and drive off any preservatives, adding 10g of sugar per 100ml, then wanging some yeast in it.
I had absolutely no confidence that this would work at all, so I started off boiling just 200ml of Irn Bru for 10 mins, mixing in 20g of sugar along the way.. chucked this in a (sterilised of course) tropicana bottle with some Young's wine yeast and a dash of nutrient. No science here whatsoever, just threw it in by eye. To my amazement and slight horror, after 1 hour it looks like this:

We are go for launch.
I'm going to let this tiny amount ferment out then pitch it as a starter into a gallon batch. I will post the results here along with a detailed report of precisely how rancid it tastes.
I can almost feel your collective anticipation.