I'm very good about Mildew....
I had the 1st neptunes with the infamous gasket issues.
Every time I finish a wash, I wipe the gasket down and keep the door open for air circulation.
My gasket has developed slight mildew on my Miele 4840. On the bottom as well as on the top where the light bulb is in on the gasket. Using my *commerical grade steam cleaner*, bleach, vinegar is not cutting it.
Any Miele owners have this issue.
I called Miele as I had their 5 year extended on it. They suggested that they would do something but not full coverage - something along the lines of they would cover the part and I would cover the labor.
GRRRR....I thought I was over this when I replaced my Neptune