<p>The present application discloses a washing machine (100) including a storage tub (200) which stores washing water for washing laundry, a first heater (160) for heating the washing water, a steam supply mechanism (300) for supplying steam to the storage tub (200), and a controller (122) for controlling the steam supply mechanism (300) and the first heater (160). The controller (122) actuates the steam supply mechanism (300) after stopping the first heater (160).</p>
