> For plastics we have no evolved tolerance. Based on what evidence? What do you think happens when you overheat animal fat or oils in a cooking vessel and "s

> For plastics we have no evolved tolerance. Based on what evidence? What do you think happens when you overheat animal fat or oils in a cooking vessel and "season" it? It forms a plastic. We've been living and eating alongside that type of plastic since we learned to cook food as a species.