Method of controlling washing machine

A method of controlling a washing machine including a tub configured to receive water, a drum rotatably disposed in the tub and configured to receive laundry through an introduction hole defined at a front of the drum, the method comprising:

• rotating the drum at a spin-dry rinse speed to allow the laundry in the drum to rotate along with the drum and to be raised along an inner surface of the drum without falling from a highest point of the inner surface of the drum;
• draining water from the tub while rotating the drum at the spin-dry rinse speed;
• supplying water to the tub to increase a water level in the tub;
• rotating the drum at a laundry adherence speed lower than the spin-dry rinse speed, the laundry adherence speed being set within a range of a rotation speed of the drum that allows the laundry to rotate along with the drum without falling from the highest point of the inner surface of the drum;
• stopping draining water from the tub such that at least a portion of the drum is disposed below the water level in the tub;
• in a state in which draining of the water from the tub is stopped and without supplying water to the tub after rotating the drum at the laundry adherence speed, accelerating the drum from the laundry adherence speed to a first tub cleaning speed;
• in the state in which draining of the water from the tub is stopped and without supplying water to the tub, rotating the drum at a second tub cleaning speed that is less than the first tub cleaning speed;
• and
• after rotating the drum at the second tub cleaning speed, rotating the drum at a laundry adherence maintaining speed less than the second tub cleaning speed while draining the water from the tub and supplying water to the tub, the laundry adherence maintaining speed being a preset rotation speed of the drum at which the laundry positioned on the inner surface of the drum does not fall from the highest point of the inner surface of the drum.