[TeMPOraL]

> And also actually food in US does somehow seem to last for longer, as probably the manufacturers anticipate this need and optimize for that (as there's no free lunch, likely at the expense of other factors);

Probably taste, at least anecdotally - every single person from my side of the world that visited the US that I talked to, mentions the food there tastes just bland in general - and that's both veggies and highly-processed foods.