Yep, if its not clean, its never gonna be sanitary.
and being a beer maker, that thick krausen ring left in my bucket HAS to be cleaned early, or its a royal pain to get out.
i do use oxy-clean Free (no bleach or perfumes) to clean organics, and then star-san right before use.
I've also drank diluted star san on purpose, to know the flavor and to see if that was detectable in my beers. well it hardly has a flavor, and i definitely didn't taste it in my beer.
you shouldn't drink one-step, and iodiphor can stain stuff, so star-san is my go-to sanitizer.
it was designed for commercial breweries after all. I even listened to the entire Brewcast with the maker of Star-san..very informative!