Are plastic bottles safe if exposed to heat?
International Bottled Water Association – Position Statement Debunking Myths About Dioxin in Bottled Water Kept in Either Hot or Cold Conditions Claims that PET (polyethylene terephthalate) plastic bottled water containers stored in either warm environments (e.g., a hot automobile), or in frozen state, “leach” dioxin which then causes breast cancer or other maladies, are false and not based in science. There are no studies which prove this theory. These allegations have been perpetuated by viral emails quoting celebrities and related media hype that only serve to frighten and confuse consumers. Dioxins are a family of compounds that can only be formed during combustion at temperatures typically above 700 degrees Fahrenheit; they cannot be formed at temperatures likely to be experienced in a hot car or in freezing temperatures. Furthermore, the vast majority of plastics used in food wraps, packaging containers and beverage bottles do not contain the chemical constituents that form dioxi