A Myth Buster: This video looks at the concern about drinking bottled water that has been left in a hot car or in the freezer. #Fact: Single-serve bottled water products are packaged in PET plastic containers, which do not contain ingredients capable of producing dangerous substances under conditions of normal use, including being subjected to hot cars. PET plastic has been approved as safe for food and beverage contact by the US Food and Drug Administration (FDA) and similar regulatory agencies throughout the world for more than 30 years. PET plastic is used in the containers for many other beverages, including soft drinks, juices, beer, wine and spirits. Conclusion: no links to cancer or other illnesses.