Fill the example 3kW kettle up to its maximum of 1.7 litres each ... to make a cup of tea, you may need to consistently heat more water than you need. Minimum fills can be as much as 500-800ml, so ...

We've tested hundreds of kettles, so you can benefit from our expert buying advice and Best Buy recommendations. Our kettle reviews reveal which ones will make a great addition to your kitchen – and ...