The best kettles in the UK to save energy and speed up your cuppa, tested

We boiled litres of water to find the best electric kettles, from hard-water heroes to vintage-style, repairable and wifi-connected models • The best air fryers, tried and tested for crisp and crunch Despite the march of progress, the humble kettle remains a kitchen staple.

It’s what we turn to in times of strife, when spirits are…