I'm about to start delivering individually packaged hot lunches to private schools in my area and I am looking for any advice on how I could keep these meals at a perfect temperature. The schools are very strict about the temperature and check them every time they arrive so they have to be perfect and extra hot I'm getting fairly nice heavy duty containers with lids that can go in my electric hot box once they are plated. Then I plan on transferring that to the thermal bags that they sell with possibly a couple heated elements that I have to microwave to get them hot. Problems are I'm afraid the meals won't stay hot enough and that I have to heat up the heating pads one at a time and as of right now I'm already going to be delivering to 10 different schools so that's a whole lot of microwaving. Most of the meals will be getting delivered by car or truck so a tall electric hot box would be out of the question And I can't find any battery powered hot boxes. Has anybody dealt with this type of service before?