Organic brown eggs now come a half-dozen to a polyethylene terephthalate (PET) package. The eggs, from Organic Valley, La Farge, Wisc., are in a clamshell tray thermoformed with pockets that hold each egg, with a paperboard insert under the lid bearing litho-printed graphics. The five varieties are color-coded according to size (large, extra-large and jumbo) and nutritional benefits (protein or Omega-3 fatty acids).
