How to clean Breville Kettle

I use Breville kettle for a long time, and this is the first time I clean it. Very simple, all you need is a cup of vinegar (white one or rice vinegar, dont use red one)
- Pour the vinegar to the kettle, add water to half or up to 1500 cc,
- Use broil setting
- Leave it there for 10 hours
- Pour the mixture out, rinse the kettle 2 times with cold water, then use cold water to cook for another 2 times before cook water for use

Here is the result: shiny again

Fist test with French press coffee