Is it true that if you store food in the aluminum can it was packaged in, it is poisonous?

For example, is it okay to open up a can of olives, eat a few, and then cover the top with Saran Wrap and stick it in the refrigerator?

I'm glad gosteelers gave you the link.you absolutely should not do that.I can't believe people said it was ok! According the United States Department of Agriculture's Meat and Poultry Hotline, the materials used in a particular food can are carefully chosen to withstand the processing that food receives in the plant and to protect it from bacteria, spoilage and loss of moisture and flavorThe can materials are really not designed for refrigerator storageIt is much better to store opened food in refrigerator containers I thought this might be a better source, since the link was on improperly canned foods.but still, it's a no!