I've had it last at camp for a month or more out of date (opened) several times, fridge doesn't get opened much at all at camp so not much of a temp swing. And that's one of my peeves at home DON'T go standing there with the fridge wide open by Gawd i'll start sweating and give ya the stank eye 🤣 BUT hunter i mentioned it on here before a few times that since chinernan flu we'd have milk go bad before the due date 🤷🏾‍♂️