I don't like a "tinny" taste. So I transfer food to a container and
label it with the date. If you stick a can in there, you run the risk
of forgetting when you opened it. You can't seal or close it properly
either. So the food inside may get dried up...or the liquid may absorb
any "RO" (refrigerator odor) you may have. As someone who cleans her
Mom's fridge constantly of these pests, I say it's not safe on many
levels. If you pour the leftover food into a dish you can use to heat
and eat from, you're not washing any extra dishes. You can chuck a
Ziplock Container.