Comes under the 'clean machines clean better' category.
[MEDIA=youtube]23dXqCrrYPU[/MEDIA]
The cleaning process is quite involved when it comes to dishwashers
I would recommend straw cleaners or even interdental toothbrushes instead of the wire she uses to clean out those holes.
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What the pro's recommend
[URL unfurl="true"]https://www.ukwhitegoods.co.uk/help/fix-it-yourself/dishwasher-self-help/2813-dishwasher-general-care-a-maintenance[/URL]