Was in town myself on sat afternoon, dont suppose you were in farringtons and happened to have the sunburnt red??
Seems to be some sort of infection in it.
Barman changed my pint no bother but kinda sniggered when i said it was infected. I saw them serving it to other people, he said they had no other complaints, but i could taste it a mile off - you know the vinegary taste im talking about.
I suppose if someone who's not into craft beer is served it they might just put it down to the fact that its not a macro beer and maybe think its supposed to taste like that. In which case they wont be drinking it again too soon.