Coffee is generally served at a crotch-scalding and definitely too hot to drink temperature of around 160°F, while the average preferred drinking temperature is somewhere around 135°F. Letting it cool without it getting so cold you can’t enjoy the entire cup is normally an issue, but it doesn’t have to be with the Ember Temperature Control Mug. As the name implies, the Ember Mug keeps your coffee hot while still allowing you to adjust the temperature at a moment’s notice with an adjustable dial built into the bottom of the the mug. Want your coffee a little cooler? Adjust the dial to get your coffee all the way down to 120°F. Hotter? Crank it up all the way to 145°F. The Ember Mug will keep your coffee at the perfect temperature for up to two hours on the go or all day if you’re near the included charging coaster. The smart mug can also be connected to your phone or Apple Watch and includes a push-to-open, leak-proof 360° lid. This might be the perfect travel mug.