If coffee isn't iced, it has to be HOT - like, really, really hot. I've spent my years as a coffee drinker making many trips back and forth to the microwave to heat up my cup. Then I received the Ember coffee mug as a gift, and it's been a game changer. The coffee mug is battery powered, and keeps your coffee at the exact temperature you specify until you're done drinking it. It never gets cold! It's a freaking miracle. The mug has to be hand washed and carefully dried, but just plop it on the charger each day and you're good to go. I love it so much I've given it as a gift to both my parents and both sisters.