Basically copper and zinc are mixed together then made into sheets that are rolled up. These rolled up sheets are fed into a machine that punches out blanks that are the size of a penny roughly. These blanks are then put through a process called ‘upsetting’ which lightly smashes the outer circumference of the coin causing it to form a smooth surface with a slight lip. The blank is then place in a striking process that imprints both sides of the coin with the typical information. After they are inspected the pennies are now ready for use.