Sounds suspiciously like a patch for a design flaw.
I've had two. First one rusted inside a year and we took it back and exchanged it under the guarantee. The second one lasted about 18 months before the bottom developed a rust hole again and we threw it away. Save yourself the bother - buy a nice looking electric kettle.
I had one of these that rusted inside. Apparently you're supposed to empty it and dry it every time it's used. No chance of that in our house.
Plastic lid puts me off that.
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