PET bottles are often identified as the most commonly recycled plastic in North America. However, some technical and economic barriers can limit the recycling of other PET packaging formats, such as thermoformed trays and clamshells, from being effectively recycled. This represents a significant undertaking for the industry, knowing that the use of PET thermoforms for all types of packaging (such as food, electronics, and cosmetics) has increased significantly over the past few years.