Finally someone from the German forum did a video of this. This function activates on the Cotton and Perm Press cycles with a half load and options like Water Plus deselected. The washer spins and sprays repeatedly to saturate the clothes. It then drains out excess water, if needed, so that only the heater is immersed and clothes are steam heated. Clothes are sprayed during the main wash. All this is, of course, the reduce energy consumption. Rinsing takes place as normal.