Abstract: A waterless portable precision heating device includes 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; an insulation layer configured to surround and contact the heating element; an outer shell surrounding the insulation layer; a lid that encloses the product 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 heating in response to signals received from the at least one sensor indicating whether the product container has reached a threshold temperature.

Abstract: A waterless decarboxylation device used to decarboxylate cannabis is described. For example, the device could include a product container to contain an amount of raw cannabis plant material, a heating container configured to surround and contact the product container, a heater in contact with the heating container, a foam layer surrounding the product container and heating container, at least one sensor configured to detect the temperature of the heating container, a lid that encloses the product container and fluidly seals it from the environment, and a controller configured to control power to the heater in response to signals sent from the at least one sensor indicating whether the heating container has reached a threshold temperature.

Abstract: An insert for a waterless portable heating device can include multiple containers or shelves arranged in layers for insertion into the device. For example, the insert can have multiple compartments to heat multiple separate ingredients at the same time, e.g., without the ingredients touching each other.