I tried a self-heating travel mug that keeps tea at the perfect temperature for hours – and it’s impossible to lose

THE self-heating travel mug once sported by Rishi Sunak could be the perfect gift for the ‘techy’ friend or family member who just seems to have it all.

The Ember Travel Mug 2+ keeps tea or coffee at the perfect temperature for hours, and connects to Apple’s Find My network – making it impossible to lose.

Ember / The SunThe Ember flask quickly cools your drink to the perfect temperature – and holds that temperature for roughly three hours[/caption] Ember / The SunEmber, which...