The container boiled in. I will conceed it has been done, but how many times can it be done with the typical container, and how many of them will fail the first time, are my primary concerns.

And yeah, I'm not sure how keen I am on drinking/eating something cooked in lexan in general. I also don't nuke things in tupperware, I put them on real plates or on paper. It's only been in the last year that I will grudingly admit that teflon pans might rival enamel and properly seasoned cast iron ones, and I've only used plastic spatulas for three years. :P Sure, using plastic plates and nalgene bottles I can do, the heat is relatively low and for a relatively short period of time, but I'm still leery of doing actual cooking on/in them.