Extremely Appetizing

The label said "extremely appetizing", with "extra vitamin e" and with "more than 20 kinds of ingredients" so I bought it. Seems like the 3 hamsters do find it appetizing. My gigantic jar of hamster food is still two thirds full but bugs have been appearing and what I fear is bugs getting into their ears. Good grief. That's worse than half-eaten bugs. There was a good suggestion on a hamster forum - freeze the food and chances are the bugs will die. Will do that later. Advice - don't store too much in future.