when did the us stop making copper pennies
Hand sorting the 1982 Copper from the Zinc pennies. 1982 was the transition year for the US Mint to stop making pennies from copper and switch to zinc. There... Hand sorting the 1982 Copper from the Zinc pennies. 1982 was the transition year for the US Mint to stop making pennies from copper and switch to zinc. There are sorting machines that can be purchased to do this work, but if you dont have a machine, your ears can do the job!