I think I saw this trick done by one of the other scouters on the site: http://allrecipes.com/recipe/omelet-in-a-bag/

My question is, when done with a bunch of scouts, how much do you have to worry about overwhelming the pot and dragging down the temperature of the water? Is the 13 minute cooking time reliable?

Reason I'm asking is that my daughter's girl scout troop is going camping at the end of the month (40 girls, not patrol cooking yet) and we want to try this as a group. And I don't want it to fail miserably.