i didnt mean those contaminents cause Alzheimers, just that its a risk to general health. food grade plastic is not considered toxic at these doses, but u def dont want it in your body if u can avoid it within reasonable effort. i use freezer bags made from plastic , and reuse plastic ziplocs from some food stuffs i buy to marinate meat, its really convenient to be able to remove the air and have the marinade fully coat the food. i reuse plastic water bottles until i forget them somewhere. im def using plastic to store food. i eat canned food too, and most of the cans mention something about their liner safety right on the can. bpa-ni is interesting, in that they say they dont intentionally use bpa liner, but bpa could still be there, wtf , how are u so unsure as a manufacturer to what ur inputs are on a factory made can. that being said, im not storing food in there for years, only hours when i use plastic in my own processes. plastic in can liners often holds food for years, and the expiration date of canned food is often many years after the food is manufactured and canned.