I think regular white vinegar is about 5% concentration, they also have (at least here in Canada) a 10% concentration that is used for pickling/canning preserves.
I just placed the chrome part in a wash bucket, dumped in enough to cover the parts and about a day or so later, removed & buffed off with fine steel wool, some times heavy rusted parts needed a second bath... when I first lifted the hubcap out, it didn't look any different, then when I wiped at the heavy rust with the steel wool it literally wiped off. Nice thing is it doesn't hurt the exisiting chrome & it's cheap !!
I get it now!
For some reason, I just couldn't get my head around 'pickling vinegar'. I was thinking more along the lines of 'pickling' metals prior to finishing up prior to a coating (like chrome).
But, you actually are talking about, pickles. The wife (she who must be obeyed) has a few gallons of 10% for the annual pickle makin' time.
Thanx much for the info!
Bill