Does anyone know if canned cat food is safe to feed past the "best by" date and how long? I have some canned food I had bought for my senior cat who I lost last year. I was saving it in case I needed it for another cat but my other cats couldn't eat it because of their allergies so I still have it. The best by dates are all from 2013 but they were between March and June. I was thinking of giving it to a feral cat but I don't want to chance making her sick?