Of the various food containers made of recycled Styrofoam, egg cartons are among the easiest to make
Because egg shells keep the actual food to be consumed from touching the Styrofoam, used Styrofoam need not be as thoroughly cleaned when made into egg cartons as when made into other food containers
There are some foods that cannot be packaged in recycled Styrofoam no matter how the Styrofoam is recycled.