It depends, Food cans are often made of tin plated steel but more are being made of aluminum. You can always check with a magnet, attracted to steel whether it is tin plated or not.
Food cans are often made from steel. I think that the internal coating is now some kind of plastic, rather than tin, these days.
Soda cans are aluminum.
They are made of tin-plated iron or steel. Tin (Sn; stannum in Latin) is used to prevent corrosion and it's not toxic.
"tin cans are made of Tin Plate: tin coated steel"
http://en.wikipedia.org/wiki/Tin_can
are tin cans(the type you have beans in) made of steel?(not drink cans)
