The bags allow you to steam a variety of foods in a microwave in very little time. I have been cooking this week with virtually no dishes or pans due to a hiccup in our house moving plans. These bags have allowed me to cook quickly and easily and not have much washing up.
I am using these at home in a gluten free house. It struck me that they would make it easy to cook safely in a contaminated or uncertain environment. Just place your vegetables or other foods in the bags in a clean environment, microwave and tip straight onto your plate. You would need to manage spoilage, keeping foods chilled or frozen if need be. These bags are going to become a regular part of my programme for eating safely.