I think that could be an issue - along with having a Pyrex food container.
Could you give us more details on the food you are trying to heat?
Does the food actually need to be cooked or just warmed?
What temperature is it starting at (are you cooling it until it is eaten or is it just kept at room/outdoor temperature?
How dense is it? If it's not very dense, you could possibly have it in ziplock bags and heat it in a pot of very hot water.
Can it be eaten at room/outdoor temperature if you are not able to warm it more than that?
That could give us more idea for suggestions to think about.
THANKS SUE- I've been wracking my brain for what we can make work.
My husband follows a low residue AutoImmune Protocol diet to help manage his Crohn's symptoms. He can only eat certain cooked (and peeled) fruits, cooked (and peeled if applicable) low fiber vegetables, and most all meats (which of course would be cooked as well). No seasoning other than salt, pepper, and herbs. No nuts/seeds or their oils, nightshades (tomatoes, potatoes other than sweet potatoes, peppers, eggplant), eggs (yolks have tested fine for him thus far though), dairy, gluten or grains of any kind, corn, soy, or artificial colors/sweeteners. So, the food wouldn't need to be hot necessarily- he could eat a cold hamburger and cold cooked vegetables. I'm not sure how appetizing that would be, but we could make it work.
We are staying in a DVC studio at the Boardwalk, and I'm bringing along a ton of cooked and frozen meat to hopefully keep cold in the mini-fridge. I'm also bringing an electric skillet and my Hot Logic. The Hot Logic can heat foods in microwave safe plastic containers (like those Ziplock ones), so the glass pyrex would be a non-issue. Dining at restaurants would be ok if we had to- I just know how expensive a plain burger and some steamed carrots would be.
The kicker to all of this is he is overcoming anemia from the Crohn's, and because of the iron pills and rebuilding his hemoglobin, he's hungry every couple of hours despite eating huge portions of food at a time. He does fine with certain beef jerky and a banana as a snack, but that can only go so far. So I'm just trying to think creatively and not run back to the room for a meal every couple of hours. At his current trend, he should be out of anemia by the time our trip rolls around in September. Another month or so and he'll be at the low end of normal, and he may be able to go longer between meals.
So that's the gist of it- he's eating a lot of prepared and cooked vegetables, fruits, and meats throughout the day, and he is seeing improvement in his energy levels and weight gain, and (knock on wood) hasn't had a Crohn's flare in a while. So what we're doing is seeming to be working... I'm just concerned we're going to be spending a ton of time running back and forth to the room so he can eat a warm meal that fits within his dietary restrictions.