by drtom » Wednesday Sep 13, 2006 12:59 pm
It won't eat the plastic away, but unless it's food-grade plastic it might pick up (i) chemicals left over from the manufacturing process (ii) tates or flavours left from previous contents. Also, plastic is slightly porous, so small quantities of gas can pass through, so it may oxidize over time (or in the case of beer, may oxidize and go flat). This process will be fairly slow though.
T.