I had used it the other night and had to pull it out from the other bathroom in order to make it work. It was dirty and she putit in the dishwasher with almost nothing else, but I’m a little fucking skeeveed by it.
Edit: thanks all. I’ll run it again with vinegar at the hottest and feel better about it. No divorce. Thanks for your help.
Human, other vertebrates and insect. Secretions and shed tissues from humans, other vertebrates and insects. Fungal spores and natural surface bacteria, mostly harmless unless you're immune-compromised, both dead and alive. Other microorganisms, dead and alive. Mineral dust and microplastics, if you find either gross. Pathogens carried with the human secretions, hopefully all dead.
Unless you work in semiconductor manufacturing, there's no such thing as perfectly clean. Even if you do it's mostly theoretical. For most practical purposes the standard used is something like:
The contaminants are too small and too few to be visible. All pathogenic contaminants are dead.
And I think that's entirely reasonable. We don't really have a choice, right?