Waterless portable precision heating device

A waterless portable precision heating device for even heating, comprising:

• an ingredient container to contain a food-related, a health-related, or a crafting-related ingredient;
• a thin heating element configured to surround and contact the ingredient container in a manner that maintains a first threshold temperature of over 100° C. in the ingredient container without use of liquid or pressure and ensures that the temperature does not increase beyond 120° C.;
• an insulation layer configured to surround and contact the thin heating element in a manner that reduces thermal transmission from the outer shell of the device to the environment;
• an outer shell surrounding the insulation layer;
• a lid that encloses the ingredient container and fluidly seals it from the environment;
• at least one sensor configured to detect the temperature of the device;
• and
• a circuit board with a controller that controls the heating of the thin heating element in response to signals received from the at least one sensor indicating whether the ingredient container has reached the first threshold temperature.