Patent ID: 9440203
Filing Date: 2016-09-13
CPC Classification: A23L,B01F,B67D,F25D

Claim Text:
1. A refrigerator comprising: a carbonated water tank in which carbonated water is storable; a water level sensor configured to sense a water level of carbonated water in the carbonated water tank; a water tank in which water is storable; a carbon dioxide cylinder in which carbon dioxide is storable; and a controller configured to: supply water from the water tank to the carbonated water tank, if the water level sensed by the water level sensor is below a predetermined minimum water level, and supply carbon dioxide from the carbon dioxide cylinder to the carbonated water tank, if the water level sensed by the water level sensor is above a predetermined maximum water level, wherein, if the carbonated water is discharged, the controller controls the water level sensor to sense the water level of the carbonated water in the carbonated water tank.