I've been using various brands of detergent in the Bosch Logixx dishwasher, including Asda's liquid and tablets; Unilever's Sun tablets; Co-Op powder; Simply Dishwasher powder pods.
I noticed over a period of several months, that the steel interior of the dishwasher was becoming tarnished and taking on a gold tinge, as well as a blueish/gold coloured patch appearing on the floor - near the salt refill cap. Dishwasher cleaner had no effect on a cycle; neither did any of the above-mentioned detergents.
I was in Tesco to check out the new Finish 'Quantumatic', but could not justify the costs involved. I then spied the Finish lemon 'Quantum' tabs reduced to half price, so I bought a box to try, as they now have three enzymes in them.
I have to say that I was impressed. One wash later, the staining on the floor of the dishwasher was gone, and 50% of the gold tinge on the door and rear wall had disappeared; the steel pots and pans were gleaming. Then two nights later, the remaining tarnishing had vanished completely.
Maybe I should just stick to quality detergents?