Quick! Can I use puff pastry 4 days after BBF?

[likelucklove]

Title says it all really. I just went to make a tomato and feta cheese tart but the best before was 29th, is it still safe? Smells fine but I don't know what I'm looking for, never cooked with it before. It's for me and DD (1 year and 4 months old)

TIA!

Has it been in a sealed pack until you just opened it? Is it yellow or grey-ish?

In my experience, gone off puff pastry smells a bit off, and goes greyish, kind of in lines.
If neither of these, it should be fine

(OK, shouldn't admit to this, but have actually cooked it when it was described as above, on the assumption that I would chuck it if it still seemed bad when cooked. It was fine.)

Thanks for your replies. I put it in, I'm gonna do the taste test. No grey bits and had been vacuum packed so should be fine. It is though goats cheese and tomatoes on piles of puff pastry because I didn't transfer it well into the oven