system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does leftover food get soggy when you seal it? Theoretically there's just as much (realistically probably less) moisture as there was when you sealed it.
gpt
I don't think it's that more moisture is added, it's more that the moisture is dispersed, like pizza, the sauce will eventually make the crispy crust soggy.  Where foods like potato chips are crispy, and there's no moisture present in the bag, so if you keep the bag air tight they don't get soggy (Like the weeks/months they spend on shelves)