A cooking utensil having a thermochromic layer including a thermochromic pigment for a temperature sensor, includes: a metal substrate; a primer layer including a fluorine-based resin formed on at least a part of a surface of the metal substrate; a thermochromic layer including a thermochromic pigment formed on at least a part of a surface of the primer layer; and a top coating layer including a curing agent formed on surfaces of the primer layer and the thermochromic layer. The thermochromic pigment is a thermochromic pigment for a temperature sensor using bismuth vanadate.

Device and Method for measuring and processing one or more conditions of a container. The device includes one or more microcontrollers, one or more temperature sensors, and one or more humidity sensors. The one or more temperature sensors are configured to measure one or more temperatures of a container, inside the container, or outside the container, generate one or more temperature signals associated with one or more temperature data representing the measured one or more temperatures, and output the one or more temperature signals to the one or more microcontrollers. The one or more humidity sensors are configured to measure one or more humidity levels outside the container, generate one or more humidity signals associated with one or more humidity data representing the measured one or more humidity levels, and output the one or more humidity signals to the one or more microcontrollers.

A container for storing a liquid for consumption. The container may comprise temperature and volume sensors, processors, energy source and a communication device to transmit the recorded temperature and volume data to a remote human interface. The container may also provide for various notifications and alerts to the user if the data falls outside predetermined variable ranges.