Huh I have a thermal cooker at home that we frequently use: https://en.wikipedia.org/wiki/Thermal_cooking https://en.wikipedia.org/wiki/Thermal_cooking Seems l

Huh I have a thermal cooker at home that we frequently use: https://en.wikipedia.org/wiki/Thermal_cooking https://en.wikipedia.org/wiki/Thermal_cooking Seems like they are using the same concept.