Safety

Stainless steel utensils are usually safe to keep in contact with food. Many commercial establishments use large stainless steel bowls, containers, and serving utensils.

Chrome-plated utensils sometimes have areas where the coating has worn away, and the metal underneath has become exposed. 

Silver or silver-plated utensils can react with foods containing sulfur compounds, such as egg yolks. Copper and brass shouldn't be left in contact with food either.