One form of a drip coffee machine comprises a water level sensor, a boiler, and a processor. The water level sensor is positioned within the drip coffee machine at a junction where a water tank connects to the drip coffee machine. The water level sensor comprises a pair of electrodes positioned within an interior region, wherein a resistance between the pair of electrodes indicates whether water is present in the water tank. The boiler comprises a heating element that is configured to heat water within the boiler. The processor is in communication with the water level sensor and the boiler, and is configured to turn on the heating element of the boiler and to turn off the heating element of the boiler based in part on the resistance between the pair of electrodes of the water level sensor.

The present invention relates to a coffee machine. The coffee machine according to an embodiment of the present invention comprises: a case; a water tank coupled to the case; a water discharge part for supplying water stored in the water tank; and a dripper for extracting liquid coffee, herein a heating plate is inserted into the water tank so that the water stored in the water tank can be heated through induction heating, and provides a structure that facilitates cleaning of the water tank and the heating plate.

A fluid level detection system to determine a level of a fluid in a container engageable with a kitchen device, the fluid level detection system comprising a float comprising a magnet, the float being located in the container and movable relative to the container, a sensor configured to detect a magnetic flux associated with the magnet, the sensor being located in the kitchen device, and a controller communicatively coupled to the sensor, the sensor configured to provide to the controller a real-time feedback of the detected magnetic flux as the float moves relative to the container, wherein the controller is configured to determine the level of the fluid in the container based on the detected magnetic flux.

A beverage machine includes a main body; a water tank having a water inlet and a water outlet; when the water inlet is in a closed state, a water source comes from the water tank; when the water inlet is in a first state, the water source comes from a water distribution network connected to a first water supply pipeline; when the water inlet is in a second state, the water source comes from a barreled water source connected to a second water supply pipeline; an on-off valve is provided on the first water supply pipeline; a first water pump is provided on the second water supply pipeline; a controller is communicatively connected to a first liquid level sensor; the controller is configured to selectively control the on-off valve to open, activate the first water pump, or generate a signal to replenish water to the water tank.

A cold brew percolator device is disclosed, which is designed to make cold brew coffee without ice or external cooling elements. The cold brew percolator device comprises a housing component that is configured in a cylindrical shape which uses a series of spinning coils powered by an electromagnetic motor to circulate the liquid and speed up heat dissipation during the brewing process. The housing component comprises removable wooden flavor filters, a continuous sprinkle head, brew and level indicator windows, and an external tap with a drip tray for easy serving.