I was ready to give my dishwasher away. Nothing worked. The white residue was impossible to get off. A friend bought me some Lemi Shine and told me to try it, and it worked great. I still have my dishwasher, and the dishes come out clean with no residue. It also smells fresh in the kitchen when the dishwasher is running. Without this product, I would have had to give up an appliance I had waited a long time to get.