Reacts with alkaline or acidic foods which can take on a metallic taste after being cooked in a copper pot.
Ceramic vs copper pots.
Because copper can leak into food in large amounts when heated the cooking surfaces are usually lined with tin or stainless steel over time these coatings can break down and allow copper to dissolve in food.
The cons of copper cookware.
Cast iron vs copper cookware.
They both have some significant advantages but there are trade offs as well.
Copper cookware is also high maintenance requiring frequent polishing to keep up that beautiful shine.
You can purchase ceramic coated cookware made from stainless steel or copper.
Cast iron vs copper cookware.
This is why most are lined pure copper pots impart a metallic taste to food and can leave gray streaks.
It is a non porous surface which keeps food from sticking to the pots and pans.
The ceramic coating is also naturally nonstick.
However most ceramic coated pots and pans are made from aluminum as it is a cheaper material.
Older cookware made from ceramic and stone may contain lead.
Additionally cheaper ceramic cookware may discolor ceramic glass cooktops at higher heat.