Our previous dishwasher was over 30 years old and I was always of the mindset that dishes needed to be rinsed clean before running the dishwasher.  Our new Bosch dishwasher changed my views on how dirty you can put dishes in and they still come out clean! We run our dishwasher about every 3 days, meaning dirty dishes have dried food like eggs, cheese and dirty casserole dishes. I can't believe they always come out clean! Amazing dishwasher!