How does a person know when a tea kettle is boiling when they own a tea kettle that has no whistle? Do you have to run over several times and open the
Why do kettles boil water that's too hot for drinking straight away? Why don't they have a setting on them so your drink doesn't have to cool down? - Quora
![How much does it cost to boil a kettle? Here's the most efficient way to boil water | Evening Standard How much does it cost to boil a kettle? Here's the most efficient way to boil water | Evening Standard](https://static.standard.co.uk/2022/08/30/12/gettyimages-1369185764-612x612.jpg?width=1200)