A form of steel containing chromium, resistant to tarnishing and rust. That’s what wikipedia says anyway. You probably couldn’t find a better kettle material. Sure glass has it’s fans, and plastic is what the kids are into these days, but if you ask me, using a material that’s resistant to tarnishing and rust to build a kettle is the choice of a sensible kettle maker.
I have of course just realised that both glass and plastic are both also resistant to tarnishing and rust, so lets try and sell you a stainless steel kettle on the basis of some other feature…
It can probably take a bit more punishment I’d expect – I’m not saying you should bang your kettle off a wall or anything, just sometimes you might accidentally drop it, or maybe during a household argument something gets thrown, you know, you can’t plan for these things, but certainly if someone had thrown a heavy object at me in the kitchen just because I forgot to text them that I was staying over at my friends house after a bit more drinking than average, but then I managed to dodge it and it hit the kettle, I’d probably be glad I bought a stainless steel kettle rather than a glass one. That’s all I’m saying.
Plus, it will look really sophisticated and not too try-hard. Y’know – it’s a confident kettle choice, just sitting there being practical, no screaming “look at my yellow kettle” – just waiting, understated, ready to do the job it was destined to do. That’s like you eh? Yeah. Supercool.