Why does washing knives in the dishwasher dull them?
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It’s not the dishwasher as such, it’s that they can stay wet from some time allowing the very fine edge to ever so slightly pit from a type of rust, that’s the dulling that you experience, same effect if you leave them under other dishes on a washboard. Of course cutting hard things and a had chopping surface can do much more damage.
always best to hand wash, dry and put away knives after using them to keep the best edge possible
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