There are several reasons whychefs, both professionals and the home variety, love cooking with copper pots.
In other words: No dishwasher and no drying rack.
Copper tarnishes very easily because it is so easy for the metal to oxidize ever seen a copper-roofed building?

The shiny metal only lasts so long before it is green and white with corrosion.
If they are not sealed, then there are a few methods of safely polishing your pots.
