I repeatedly misspelled that! I mean "bain marie." It's basically "water bath" aka a steam table. I think SS is better than aluminum. It wears better, stuff sticks less and aluminum has been linked to Alzheimers. What I like about the bain marie pots are that they're stovepipe shaped, tall and skinny. For general cooking that's maybe not ideal but I want something that will encase a Nalgene sized bottle, and hopefully fit in a water bottle pouch.

I'm thinking of a high end Billy Can, not a full on cook set.