You may be able to control how you like your coffee brewed, bit it's not always easy to get it at the right temperature, most times it's it either too hot or too cold.
Meet Ember—“the world’s most advanced mug” that allows you to keep your beverage at a very precise temperature of your choosing; by simply rotating a ring at the bottom of the mug to quickly cool your cup of coffee or tea to the desired temperature.
The best part of this mug is that it will keep your drink at the same temperature for two hours while on-the-go, or all day when it is used with the accompanying charging coaster.
