I used vinegar in the dishwasher rinse cycle for years, until the Cascade Complete came on the market. We have 35+ grain of hardness in our water, so the dishes would look dirty after the cycle no matter what brand I tried. Seemed like the jet dry just put a covering over the streaks and would not wipe off. Hate hand washing, takes away from quilting. One time I cut my lip on the edge of a drinking glass. I ran my fingernail over it, it was clear and it scraped off. The glass was not chipped so it must have been the hard water and jet dry combination. Never used it again.