I was playing with different methods of shining brass.
Wet tumbling, I used 2 cups water and added one tablespoon lime juice.
This is the result:

I hope this helps someone!
Regards,
Josh
The video did say it would require some agitation, which speaks to your point. Thanks.jdonovan wrote:I believe the salt is unnecessary, you're using the acid in the Vinegar to chemically clean the brass, very similar to lemi-shine.
It will shine the brass, but I'm not sure without some kind of mechanical rubbing if it will remove carbon deposits.