Something rather disturbing has been happening in our refrigerator recentlyWhenever I cover a container with aluminum foil and put it in the fridge, something drips down on it and eats holes in the foilI've looked on the ceiling of the fridge, and there is no liquid other than what looks like water thereWhat could be dripping down and destroying the foil?
Because glass is non-porous (no pores or openings to let anything soak in), markers are safe to useI have used dry erase markers on windows and mirrors and wiped them off with an eraser or tissueSharpie markers are also OK, but require a little more rubbing to removeDon't use on porcelain (like a coffee cup), because they are porous and will stain.
Are you covering acid things like spagetti? Being in contact with acid foods like spagetti or fish with lemon will eat itWater should not drip in your fridgeIndicates a problem with drain to drip/evaporator pan or defroster coil does not work (or only partly [sometimes there are two]) Do you put things in while still hot? (will force moisture to condense) It there a neat freak who cleans with a Chlorox or alkali cleaner and doesn't rinse all of it awayAnything that drips will have some of it in itAnything like salsa with ill fitting top? Fumes will acidify moistureIs circulation fan working? If there is moisture in the freezer or excessive ice, defrost may not be workingVacuum underneath and blow out hard to reach stuffCats will drive lots of stuff under.