Copper finned pipe cleanup

Just recently scrapped a pool heater. There were 9 copper ribbed pipes inside. Each weighs 3.10 lbs.
I just love that beautiful green color(corroded copper), but was wondering how easy to clean that green powder out of between the copper ribs. Anybody have any tricks?
Just worried it would go for number 2 instead of 1.

I found dipping it in vinegar will take off the tarnish. If you do this though you will need to dry it off right away. If not it will oxidize once again. If it just a little amount it may not be worth the time and trouble. Good luck.

well its almost 30 lbs total so I will try thanks
I'll try to post some pics

They are 15 lbs of copper in each pool heater.
Some have cast iron header ends, some have dirty stainless headers, but the best is the ones with Brass headers.
We do two or three pool heaters a day for the month of May and June.
I will post pictures this evenings of complete breakdown. They are very easy to do with a 5/16 bit on a drill. The hard part is getting the headers off.
I use my chop saw but can be done a hammer or sludge. Another easier way is sawsall or axe and hammer.
Betty and Scott

Don't try any ways of cleaning the green off because the fins are soldered on and will still number 2 copper.
Just like RSComputer said water and vinigar works great. You just have to rinse in water and dry right after.
My .02