All you need to do is dip the cut half of a lemon in a dish of kosher salt, get an 1/8 inch of crust on the lemon, then scrub away at your copper pots in a circular motion -- adding more salt as needed.
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Homekeeping & Cleaning
wow . just in time . . . i just moved and have to clean all my pots and pans from storage!
I just use Barkeeper's Friend. It's pretty cheap, and you do not need much to do the job.http://barkeepersfriend.com/products.htm
I suppose it (the Barkeeper's Friend) is not very green, but if you do not generally use lemons, it is an alternative.
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