Technology
How does a washing machine work?
A washing machine cleans clothes by tumbling or spinning them in water mixed with detergent, using mechanical motion to loosen dirt. It then drains the dirty water and spins fast to fling most of the water back out of the clothes.
See it in motion.
Watch a 2-minute animated lesson that shows exactly how a washing machine works.
Step by step
- 1It fills a drum with water and detergent, which loosens and lifts dirt from fabric.
- 2A motor rotates the drum, tumbling or agitating the clothes to scrub them mechanically.
- 3Detergent molecules surround grease and dirt so they rinse away with the water.
- 4After washing, it drains the water and spins the drum fast to wring clothes by centrifugal force.
- 5Sensors and a timer control the water level, temperature, and cycle steps.
Frequently asked questions
- How does the spin cycle remove water?
- Spinning the drum very fast flings water outward through small holes (centrifugal action), pulling most of it out of the clothes so they dry faster.
- What does detergent actually do?
- Its molecules grab grease and dirt at one end and water at the other, lifting grime off fabric so it washes away.
- Why does hot water clean better?
- Heat helps detergent dissolve and break down oils and stains faster, though many modern detergents also work well in cold water.