How to effectively clean copper bottom pots and pans?

To effectively clean copper bottom pots and pans, mix equal parts of vinegar and salt to create a paste. Apply the paste to the copper surface and scrub gently with a sponge or cloth. Rinse with water and dry thoroughly. Alternatively, you can use a commercial copper cleaner following the manufacturer's instructions. Regularly polishing with a mixture of lemon juice and baking soda can also help maintain the shine of copper cookware.