Polyethylene terephthalate or PET (also abbreviated PETE) is the chemical name for polyester. PET is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially convenience-sized soft drinks, juices and water. PET is approved as safe for contact with foods and beverages by the FDA and health-safety agencies throughout the world. PET is completely recyclable, and is the most recycled plastic in the U.S and worldwide. Special grades of PET are used for carry-home food containers and prepared food trays that can be warmed in the oven or microwave.