Contact with hot liquid causes a huge spike in the amount of toxic chemical bisphenol A leaching out of plastic bottles, says new research that’s bad news for baby-bottle-sterilizing parents and hot-liquid-drinking hikers. Filling bottles with boiling water boosted rates of BPA ooze by up to 55 times more than room-temperature water did, according to the study published in the journal Toxicology Letters. The age of the bottle was found to be irrelevant. Cold chocolate, anyone?
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