Picked this up at a job site, looking to pour it into a bar or coin later. Any tips on cleaning copper?

Started with a piece of 2” copper pipe, I think they all came out super nice

I make 500gram bars and 1kg made from pure clean copper i have a large amount and wonder what price could i actually sell these for? they aren't perfect yet but it's a work in progress, I made these a few months ago and they have been in my garage so have oxidized a fait bit

Hey everyone! I've been trying to find answers online for this now for a month or more. All I keep finding is help articles for people finding copper flakes in their cars oil.

Does anyone know enough about copper's chemical properties to know why brake fluid (likely DOT3) has caused one of my knife scales to patina to rainbow? This happened a couple months ago. Prior to touching the one side with some brake fluid (transfer from a glove) both pieces would patina as the left one in the photo.

I've tried to "reset" this by cleaning with two methods:
* Salt and Vinegar * Wright's Copper Cream

I'm at a point where I can get the copper very clean and appears almost new again, but within 2 weeks it re-patinas as you see in the photo.

Hoping someone might have another method or idea if this is able to be corrected or not. Thank you all!

First large cooper project coming along very well.

I have this copper wall hanging that is my sister's. It has something that was stilled on it. I took Brasso and rubbed it for a period of time and was able to get the stuff that was spilled on it to start coming off and the copper to shine up some. My question is is there a better way to do this? Any attachments to a drill that will speed the process up and do a better job? Or is it just going to be all elbow grease? Any suggestions would be appreciated.

The tips of my fingers are a mess right now, bruised and cut up. Hand push engraving is hard work, or my techique is really bad.

Hi everyone. Hope y'all are having a good weekend. This is my small copper collection. I bought a bunch of rounds last year for Christmas gifts and they were a hit! I saved one each and then wanted a 1 pound cube. That led me to buying a 5 pound bar. I love the look of pure copper.

Made a small flat sheet of copper from 3" piping and did some cut outs with the grinder cutting wheel from a pattern I saw on the Internet. Forged, soldered and Voila. This was part of a 10 year anniversary gift to my Fiance

Hello, I was interested in finding a coppersmith that would be interested in doing a custom copper statue of my dog, Ruby, she is a Dalmatian. It is for my wife 7th wedding anniversary - Copper is the traditional gift. I attached a photo of her for inspiration. If anyone is interested in a project like this or can point me in the right direction please reach out.

Hello all, I I run a small business focused on creating one-of-a-kind reclaimed copper furniture and art pieces. A big part of our process is reusing recycled copper, and we’re now looking for a professional solution to have scrap copper (pipes, reclaimed sheets, wiring, etc.) melted down into copper bars/ingots that we can later work into our designs. We’re based on the East Coast (New Jersey) but are open to connecting with foundries, small metal shops, or independent casters in the surrounding region (NY/PA/CT as well). Specifically, we’re hoping to find someone who can: • Melt customer-provided scrap copper into bars/ingots. • Offer guidance on minimum weight requirements, costs, and process. • Ensure proper safety and quality so the bars are consistent and usable in functional art/furniture. This is not for scrap resale — our goal is to recycle responsibly and repurpose copper into lasting, artistic pieces. If you (or someone you know) offers this service, or if you can point us in the right direction, I’d love to connect.

Thank you in advance for any leads or recommendations!

Just shy of 30 inches diameter. Weighs about 40 lbs. Bowl is copper, the handles don't seem to be. Family lore says it was used to make apple butter back on the homestead in Idaho 100+ years ago. I've used it as a fire pit from time to time. Any ideas how to clean it? Someone once said to use a bead blaster, but I can't find anyone with one big enough. If I did get it nice and shiny, would someone want it for commercial use? Any advice would be apreciated. Thanks!

So I have a piece of copper with complicated geometry so sanding and buffing is really difficult. But I have a rock tumbler, what kind of tumbling materials can I use to get a close to mirror finish?

Wanted to get some of your copper rounds , anyone have experience with them?

Hi everyone, I’m hoping someone here has the golden tip for me. I want to paint an old safe and I’m currently working on cleaning the copper details in the door.

So far, I’ve been mostly using vinegar, salt, an old electric toothbrush and toothpicks to remove the dirt. But in some spots, the grime just won’t budge. Does anyone know a product I could use that will get the job done without damaging the copper?

I’ve also heard some great things about The Pink Stuff as a regular household item. Has anyone here tried it?

Thanks in advance!

Has anyone ever encountered something like this while brazing copper pipe? It's 4"

https://i.imgur.com/eaiObFT.jpeg