I have been toying with the idea that a ceramic lined container may be the way to go. Glass seems to dissapate the heat well, while plastics are easier to work with and come in a variety of shapes and sizes. If I can install my cells within a ceramic container, then insert the ceramic into a protective shell I believe that the only reason heat will be a problem would be steam.
Anyone experimented with such a thing yet? Will Lye eat through the ceramic?