Well its Viners cutlery and at my age i am reluctant to replace it but maybe you're right. I certainly dont leave it too long. Really curious about the answer that was removed now must have been really rude!!!
Salt and stainless steel are bad news. The chloride ion attacks the steel to leave rust marks or white corrosion marks.
Either invest in some silver cutlery or find a dishwasher powder with a lower sodium chloride content.
Eh? Salt is well-known for its corrosive effect on silver, on salt shakers and salt cellars, for example. As to stainless steel rusting, it's down to quality, as already stated. I remember a diving magazine article on stainless steel divers knives that were tested by being left lying in salt seawater. Out of about twenty knives, only around four, typically the more expensive, didn't show signs of rust after some hours.
The removed answer was probably the Spammer who invades this site in the early hours of every morning - he/she gets banned then returns with a different name the next morning. A right pain.
check that your salt reservoir lid is screwed on properly and there is no salt in the threads. My cutlery is tescos cheapo stuff and doesn't come out rusty.
Well thanks everyone. i shall check the salt lid and make sure the filters are clean. Incidentally I have some spoons from Next that feel much nicer than my viners spoons but were quite cheap and they dont rust either. Thank all for taking the time xx
Just a technical comment:
There are two types of stainless steel which are used for cutlery manufacture.
One grade, which is used for knives and is harder and capable of being sharpened is somewhat less corrosion resistant than the slightly softer grade which is typically used for spoons and forks.
If you check your stainless steel cutlery with a simple magnet you'll see that the knives attract the magnet whereas the spoons and forks don't.
If it is only your knives that are showing the rust spots then I suggest that you wash these in the old fashioned way and only put the spoons and forks in the dishwasher.
Incidentally, "stainless" steel doesn't mean it doesn't stain. It just stains less!