The twenty-dollar copper spatula doesn't work. Copper spatula can't be used for cooking. Copper is a trace element in human body. Excessive copper will cause copper poisoning, which will lead to health problems. When cooking, the copper spatula keeps turning, and the small copper particles will be mixed with Lai, which will be absorbed by the human body after eating, causing trace elements to exceed the standard and causing future troubles. In addition, the copper spatula is expensive and easy to wear.