@aleen The way I think about it is akin to the slowly-dirtying soapy water in the sink — its purpose is to loosen, scrub, and apply surfactant to the dirty dishes, causing the dirty stuff to almost entirely come off, but at least come loose, then get rinsed away clean with the rinse water. That rinse doesn't touch sponge, soap, or sink first. 🤷🏻♂️