In the United States and Canada, the colloquial use of the word styrofoam refers to another material that is usually white in color and made of expanded (not extruded) polystyrene foam (EPS). It is often used in food containers, coffee cups, and as cushioning material in packaging.[1] The trademarked term is used generically although it is a different material from the extruded polystyrene used for Styrofoam insulation.