According to the United States Department of Agriculture, rust is not food-safe and shouldn't be ingested. That said, it's unlikely that a lightly rusted cast-iron skillet will harm you. When cooking ...

Q: I have a cast-iron skillet that I have been using for a few years. It has brown, rust-colored stains that don’t come off, no matter what I do. I’ve tried kosher salt and a small chain, soap, a ...

We may earn a commission from links on this page. Within a few seconds of walking into the bathroom of my new apartment, I knew I'd be living in one of the majority of American homes with hard water.