As an alternative to Stainless Steel, there are food grade tote bins readily available.
http://www.amazon.com/Rubbermaid-Commercial-Products-FG330800CLR-2-Gallon/dp/B000VAPU6I/ref=sr_1_3?s=industrial&ie=UTF8&qid=1385352100&sr=1-3&keywords=rubbermaid+food+box
There are also steam table...