So when I went to get the good food for Parker, I got the large cans, not really thinking..he isn't really a big eater so I am finding the huge cans are lasting, what is probably too long. I'm guessing their food spoils in the fridge after 3 or so days...I still have a few more large cans to go...I really hate to waste it by having it go bad...any ideas of how I keep it longer? Its too expensive to throw out! lol