I've tried so many brands over the years, including Knork and Liberty. They all rusted just like you said. There is something going on with cheap-to-middle tier flatware manufacturers, they either lie about the quality of steel they're using or they're otherwise cutting costs in some other way that affects quality. As soon as I moved up in class so to speak and tried more expensive brands, the quality of steel became immensely better. I suggest looking at Yamazaki (Japan) or Ricci (European brand...they're made in China or Vietnam, but still amazing quality in my experience). Ironically, even the 18/8 Yamazaki flatware does not rust like the cheaper stuff does. Ricci is 18/10 and has never given me any problems whatsoever. It's gorgeous stuff and well worth it.