.... it depends a lot on the dishwasher. Though yes, detergent is nasty stuff and the damage accumulates, even if you find a relatively gentle one. But for ex

.... it depends a lot on the dishwasher. Though yes, detergent is nasty stuff and the damage accumulates, even if you find a relatively gentle one. But for example, no, my relatively-recently-built dishwasher does not have a turbidity sensor; cycles run on a timer, nothing more. I'm in an apartment. A significant portion of the US population is as well. The built-in dishwasher here is just shy of being garbage (I've had far worse, this one is acceptable). A lot of those intelligent design things do not exist in it, because it was made for bottom-dollar bulk sales. Using the pre-rinsing cycle has had an absolutely massively improved cleaning quality for us, and pre-wash soap has done absolutely nothing unless dishes have massive amounts of crud on them (and even then, the pre-rinse does dramatically more).