Just because something chemically reacts with plastic doesn't mean it's not safe for human consumption (and the reverse is true: the fact that something doesn't react with plastic doesn't mean it IS safe). For example, hydrofluoric acid doesn't react with HDPE plastic but will dissolve glass...
In case you're trying to see what my avatar picture is, here you go. That's me with the star on my helmet.
I play roller derby, going on 4 years now. Smoking was doing a good job of getting in the way of that so I decided to quit.