There's nothing worse than forgetting about your cup of coffee, then coming back an hour later to a lukewarm drink. Sure, you could nuke it in the microwave, but it just doesn't taste the same after.

Staring at that cup of coffee you forgot about which is now undrinkably cool? This is the 21st century, friends — you don’t have to drink cold coffee. All you need is to starting using a smart mug.

Coffee lovers have a lot to consider when it comes to their favorite beverage. Whole bean or ground? Dark or blonde roast? Pour over or French press? Thanks to temperature-controlled mugs, one ...