Bisphenol-A

Bisphenol-A (BPA) is used in the manufacture of some plastics which are used for food containers. Recently some researchers found indications that BPA is bad for health, even though the Food and Drug Administration considers BPA to be safe.

Here's the WaPo on how to avoid BPA.

Rubbermaid has a nice page on which of their products do or do not contain BPA.