A refrigerator is provided. The refrigerator includes an evaporator configured to evaporate a coolant and to cool a storage compartment, a compressor configured to compress the coolant evaporated in the evaporator, a condenser configured to condense the coolant compressed in the compressor, a hot line configured to receive condensed coolant, a first capillary tube configured to receive condensed coolant from the hot line, a second capillary tube configured to receive condensed coolant and arranged to allow bypassing of the hot line, a first coolant configured to adjust flow of condensed coolant from the hot line to the first capillary tube and a second coolant adjusting valve configured to control flow of condensed coolant from the condenser to the hot line and the second capillary tube.