And the answer is: a lot! For me this was a test to see if I can really forge cast copper. It’s tricky because it tends to crack if forged too hot or cold for long but it’s definitely doable. Do you have any tips for forging copper? Let me know! Get Free Email Updates!Signup to receive email for important notifications. I will never give away, trade or sell your email address. You can unsubscribe at any time. You will not receive spam.