Meal prepping, doesnt the food say on day 7 go off?

[Eggybreadwithnuts]

So keep seeing people going on about food prepping meals for the week ahead. 7 lunches, 7 dinners - 14 containers but surely wouldnt the ones on day 6 or 7 be a bit...well...not quite nice?

Why can’t you reheat food? So if you had leftovers you would just throw them out?
if I didn’t reheat food it would limit what I ate so much

This! Plus I don’t know what I want to eat today, let alone 7 days’ time!

I should try to tho; I despise cooking so should plan at least a little.

Its not about the robustness of the container, it's because once they've been opened, they're exposed to air and microorganisms, which speed up bacterial growth and spoilage.

You're risking food poisoning if you eat more than 3 days after opening, it's exceptionally poor food hygiene. You're only lucky til you're not lucky!