Why the spin cycle gets water out
A washer’s spin cycle does not dry clothes; it removes water mechanically before they reach the dryer. As the drum turns, its wall carries the clothes around in a circle. The water trapped among the fibers is less firmly held, so the rotation drives it toward the drum’s outer edge. There, it can pass through the perforations while the fabric stays inside.
This outward effect is commonly called centrifugal force. In a rotating drum, it describes how objects and liquid appear to move outward; the water then exits through the holes, while the drum keeps the heavier bundle of clothes rotating.
Faster spinning means less work for the dryer
The faster the drum turns, the stronger the outward effect. A higher spin speed can therefore leave less water in the fabric, though the machine must keep the load balanced enough to avoid excessive shaking. If clothes bunch heavily on one side, the rotating drum can wobble, so washers may redistribute a load or reduce spin speed.
Removing water this way takes less energy than heating it until it evaporates. The spin cycle’s practical payoff is not just clothes that feel less wet: every bit of water spun out is water the dryer does not have to turn into vapor. That can shorten drying time and reduce the energy needed afterward.
