What temperature presets does it have?

It has six presets aimed at common tea and water needs, from delicate green and white teas up to a full boil. You pick a preset instead of setting an exact degree.

How does the keep-warm mode work?

After heating, it holds the water at temperature for up to 60 minutes. After that it shuts off, so it is not an all-day warmer.

Is the water path really plastic-free?

The kettle body is glass and the water contacts glass and metal, not plastic. The lid, handle and base are separate parts outside the water path.

Can I use the infuser for loose-leaf tea?

Yes. The infuser holds loose leaves so they steep in the heated water, then lifts out for cleaning. Remove it before boiling plain water if you prefer.

How fast does it boil?

Small amounts are quick: about 3 minutes for two cups. A full 1.7L takes longer, as with any kettle of this size.

Is it worth it over a basic kettle?

If you brew green or white tea and want preset temperatures plus a keep-warm hold, the extra control is the point. If you only boil water for coffee or cooking, a simple kettle does the same job.