Somewhere along the way, I picked up the idea that polycarbonate plastic
was safer to use in beverage and food containers than plastics like PET, that it didn't leach toxic
plastic molecules are made up of strings of Bisphenol A (BPA), which was
originally created as a synthetic hormone. As polycarbonate ages, wears, or
is exposed to heat, acids, or bases, BPA leaches out.