If you’ve ever used aluminum foil, you might have noticed something curious: one side is shiny, while the other is dull. For a long time, this difference has sparked debates in kitchens everywhere.

The hack, dubbed the “aluminum foil hack” was shared by Carolina McCauley (@mccauley) in the summer of 2021, and since then it has got TikTokers obsessed. McCauley promised that this hack ...