I can't stand Peter Pan. I like the just peanuts kind, not the stuff that's been spiked with hydrogenated veg oil, salt, sugar, and who knows what else. Yuk.
Like chicken carcases?
Might not be a bad idea to make your own peanut butter. I think most food processors can handle it. That way you get it fresh and you can be pretty sure it will be non contaminated. Plus that way you are not limited to peanut butter you can make such yummies as cashew or almond butters.