Apparently pre-rinsing confuses the dishwasher or something. Not doing it leaves me with residue all over the other dishes though 🤷
I hate these commercials and I find it funny that they pay money to run them in my country where we have so much water we're practically drowning. We drink tap water and we leave the tap running for a quite some time just to get nice cold drinking water.
I could not give a damn about saving tap water. The dishes are rinsed before they go in the dishwasher.
This is a classic example of an American company assuming everyone else in the world think exactly like them, and subsequently completely fail with their marketing, at least in my part of the world.