I actually looked it up. They are 5,65% copper, the rest ist iron. But because they are not 100% copper, they are less valuable then 1 cent. https://de.m.wikipedia.org/wiki/Euromünzen
The problem gets worse if you realize that the material value of the copper is greater than the coin value itself with 1 cent.
Jazz meets Hiphop:
Amerigo Gazaway - Angel of the Morning https://www.youtube.com/watch?v=IOKt5o1cXWo