The water/food seems fine.  There are plenty of still sealed packages.  They are old and past their expiration, but there is no reason to assume they are poisonous barring manufacturing defect.<br/><br/>I mean if he is still alive: https://www.youtube.com/watch?v=jZoHuMwZwTk<br/>How bad can frozen, vacuum preserved, rations be for your characters.   :P