OH has just discovered when making our Sunday morning sneak back to bed and hope the kids don’t hear brew, that the milk’s use by date was 12th September! It’s not separated, not curdled, not rank smelling and tastes fine! My son had it on cereal yesterday. OH is not perturbed but I’m wondering if it’s been mislabelled or something. It’s 11 days past use by and I know things can last a couple of days but I’ve never known milk to last so long! 
Have you?