I think this depends on whether you are charging anything for the food. If you charge the community something then I think it needs to be in date. If you give it away for free we work on the basis that if it smells ok and looks ok then it is ok to use, but if anyone has any doubts to throw it away. Anything that is a year or more out of date goes in the bin. If the packaging is in any way compromised we see if we can use it within a couple of weeks and if not, it goes in the bin. I can't comment on any research but that's what we've been doing. We don't have a lot of money so can't afford to be too picky!
------------------------------
Samantha Cooper
Operations Manager
Cayman Islands Humane Society
George Town
------------------------------