Opened a block of Jus-Rol puff pastry today, rolled it out and there were brown patches where I'd rolled - when I peeled it apart a bit it was quite brown inside and smelt a bit off. I usually get the pre-rolled stuff not the block so wondered what it might be?
I chucked that quarter out anyway and the rest of the block seemed fine.
It's been sitting in the fridge for a couple of weeks (unwrapped) but was a few days away from the Best Before date.