I have been reading about a thermal cooker...it's based on the concept of the big easy but with no electricity or plug ins. You bring the food up to the temp that you want it and put it in the pot and then put it in a bigger pot and the infrared heat completes the cooking for as long as you like. It doesn't overcook and it finished cooking what you put in the pot. I still use my Big easy and it works on the same principal without added heat, pot in a pot.
They are a Japanese item, not chinese. I am looking and wondering if anyone else is using it. I like that you can take it anywhere without plugging to anything.
There are tons of recipes on how to use it and what to cook.. Just heat to the temp you want and then put it in pot and let it finish cooking.