Sooo Cool

So I read somewhere that a thin film of ketchup would clean copper. Shee-yeah, right. 

But it kept nagging at the back of my brain. ...And, metal polish isn't the cheapest. So I finally tried it. 

Proof is in the picture. How cool is that?

Please note: I tested a small area so we could see the 'before' and the 'after.' That's why you still see tarnish around it!