Rusty razors might be steril, but if contaminated, that rust will hold the bacteria much better than a new, clean blade
Come on Roger! You are making stuff up to back up your prejudice. I bet that you didn't even look to see if there is any reality to this claim (and yes I did check). I mean, do you have a link from a scientific source to back this up.
Again, as the CDC and EPA and the School of Medicine already referenced in this thread, rust doesn't come from "contamination" it comes from moisture. You all keep on wanting to link rust to bacteria. And yet, no one has come up with a link.
And you make up this claim that bacteria will "hold bacteria better" with zero facts to back this up.
Let's think logically about this. Rust is Ferrous oxide and is a stable compound of iron and oxygen. There is no reason to believe that the chemical compound is more conducive to bacterial growth... in fact the only scientific references made in this thread, including the CDC link found by Herald, say the contrary.
Razors today have moisturizing strips which are more porous than rust (with all the crevices you will imagine). Do you see that as more of a risk as the "crevices" in a little rust?
This is a just classic case of American hysteria. It is a neurotic obsession for sterility even when there is no scientific or medical reason for it.
This is the reason that we keep buying anti-bacterial soap even though scientist tell us that not only is the ineffective, but that it is actually harmful to our heath.