Caring for copper cookware is not much different than for any other cookware. If you want your copper cookware to always look new, it will require effort.
We recommend that you wash your cookware in sudsy water (we prefer Dawn) when you receive it and, as you always should, dry it well. It is also a good idea to apply a little cooking oil to the cast iron handles to mitigate rusting.
In normal use, we recommend the use of Barkeepers Friend to clean both the interior and exterior of your copper pans. It contains oxalic acid that is very effective at removing tarnish from the copper and for keeping the stainless interior looking bright. The most effective method of cleaning with the Barkeepers Friend is to use one of the green Scotch Brite pads.
Always rinse well and dry thoroughly. Never put your copper pans in the dishwasher.
NEVER let undissolved salt crystals sit on the stainless surface for extended periods-salt will pit stainless steel. Add salt to pasta water just as it comes to a boil.
Also, NEVER store food in your pans, rinse them after use and, I repeat, NEVER store food in them...