June 16, 2008 - ...plastic used in grocery and sandwich bags and squeezable bottles. 5. Polypropylene: A heat-resistant plastic found in Tupperware, yogurt containers and medicine bottles. 6. Polystyrene: This plastic can be found in solid or foam forms such as coffee cups, egg cartons and plastic forks. 7. Other: These items are often a blend of different or less common plastics. Items include 5 gallon reusable water jugs and some citrus juice containers. Source: ides.com ...