Original process: principle of bicycle freewheel, we start with the rope and the basket then turns itself; yet can be accelerated more rotation by giving new blow rope. A brake helps stop the rotation. A report that mine came with the defective freewheeling mechanism, the small nylon circle with the catches was broken, probably broken like that mounted at the factory, surprising when you know the seriousness of the Swiss brand Zyliss. But as I am very handy and I repaired the wringer works great. Apart from this incident it seems very sturdy and perfectly drained.