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Sorting out the various claims made about potential health issues associated with plastic water bottles is a difficult process, both because so many different claims about them are circulated and because the generic term plastic bottle can in fact refer to any one of several different types of bottles with distinctly different chemical properties. Water, soda, and juice are typically sold in bottles made from polyethylene terephthalate, also known as PET or PETE. These containers are intended to be disposable, single-use bottles, although many consumers wash them and re-use them to hold drinking water or other beverages. Some of the example items reproduced above claim that freezing or re-using PET bottles releases unsafe levels of carcinogens such as dioxins or the plastics additive DEHA (diethylhydroxylamine) into whatever liquids they may contain. However, according to the American Chemistry Council, such claims are inaccurate on two counts: DEHA is not used in the manufacture of PET bottles (nor is it created through the breakdown of such bottles), and DEHA is not classified as a human carcinogen: The American Cancer Society also debunked such claims, stating: As for the notion that freezing water in plastic bottles releases dioxin, the American Chemical Council asserted: Johns Hopkins researcher Dr. Rolf Halden also said of such claims that: Dr. Halden did note that drinking water from plastic bottles that had been exposed to high temperatures could be problematic, though: Another common type of plastic bottle is made with bisphenol A, also known as BPA. These products are typically rigid plastic bottles intended for multiple re-use, such as baby bottles or water bottles carried by cyclists. Concerns about tests that may link BPA ingestion with cancer and reproductive damage in some animals and the possibility that BPA could leach out of plastic bottles and into the liquids they contain has led to bans on the use of BPA in plastic products intended for children (such as baby bottles), and has prompted some consumers to seek out non-BPA alternatives.
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