Yeah, I kept doing that for my copper pots once a month with different things: ketchup, bar keepers friend, etc. It was never an easy wipe away experience like I imagined.
The baseline for me is vinegar poured over salt, which magically removes tarnish in seconds without even wiping, in some spots. But in others, it doesn't and then it takes a fair amount of scrubbing.
So what I'm looking for is a way to make the reaction more uniform, perhaps slow it down. Maybe corn syrup.
