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It depends on what you are worried about. Before 1970 the seam on cans was sealed with solder which had a lot of lead in it which leached into the food. Also, the inside of the can was galvanized to prevent rusting which gave the food a metallic taste. Those are no longer a problem.

Some people warn that the inside of refrigerators are a hotbed of bacteria and the leftover stuff in the can has bacteria in it and putting it in the fridge makes a bacteria festival. But this applies whether in the leftover is in the can or a dish.

As for myself I put plastic wrap over the mouth of the can and keep it in the fridge no longer than three days after opening.

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12y ago

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