Mine get the full inside-out treatment at least once a year, I detail my bowls and lids several times a year, my kettles are like classic cars. I drive them, and I wash them. On my One Touch kettles, I remove and clean the hex nut and thumbscrew to keep it from rusting solid, twice a year. (a beeyatch to drill out), I'll be interested to see how the "H" style holds up. As for the grates, I do a burn off, fire's the best cleaner.