Ember Temperature Control Smart Mug, 10 oz, 1-hr Battery Life, Black - App Controlled Heated Coffee Mug

The cup was fine but I had to return one that wouldn’t heat up

I received this item as a gift. I drink a lot of coffee, and I do tend to leave my cups lying around long enough for it to get cold and I have to traipse to the microwave to heat it up for 10 seconds. Even after knowing my habits though, I didn't think I would use this product enough. It seemed like a hassle to have to charge a coffee cup, and because of that I didn't use it for some weeks. After some coaxing, I finally pulled it out of the box and it has changed my life! I kind of feel bad, because this is the only coffee cup I now use. I have whole cabinets filled with awesome mugs and that's where they'll stay.The ceramic mug is ridiculously easy to clean. It isn't dishwasher safe, so it needs to be hand washed. Honestly, all I do is rinse it with hot water and place it back on the charger. It's coffee, and, unlike some cups that keep coffee stains and smells (even after heavy washing), this thing resilient. Just make sure you dry it before putting it back on the charger. Water and electricity usually don't mix well.The one thing I will say is that it keeps my coffee hot, and the less liquid is in the cup, it seems like the hotter it gets. So, after I drink most of my coffee, I tend to turn the cup off so I don't burn my mouth. Since I only use this cup, I don't have mugs piling up with leftover coffee in them either. I only say it changed my life, because one morning I realized I had forgotten to put the cup back on it's charger the day before. I was so bummed having to make my coffee in my batman mug (which is my favorite), that it dawned on me how much I preferred using the Ember mug.Long story short, great mug! Purchased as a gift for my father-in-law too. His experience is much the same as mine, haha. Didn't think we'd care for it, but now we love it!

I purchased this mug on the enthusiastic recommendation of a friend. It was almost a no-brainer to set up; just unpack, charge it a bit on its charging plate, and then you're ready to go. I use it every morning, as I consume several cups of coffee. In fact, I'm using it now as I write this review! I works exactly as advertised. You set a desired temperature using a smartphone app, and then the cup works to bring the coffee (or tea) to that temperature and hold it there for as long as the battery lasts. (In my case, I drink my cup quite a bit faster than the battery life, so I never run out of power.) It's a simply designed cup/device that's comfortable to hold, and easy to clean although not dishwasher safe. I drink several cups in the morning, and it handles each one properly, sensing the temperature and then adjusting as needed. My main wish is that it would be larger, as I can consume a fair amount of coffee. This cup holds about 6-8 oz. It's definitely a luxury item. Nice to have, perhaps not as useful for people who slam down each cup quickly since they won't get much value out of its "hold temperature" feature.

This cup was recommended to me by a friend. I was taken aback by the price but put it on my Christmas list anyway. Choosing a color was easy - it was either black or white (more color choices would be nice!). I chose white.When the day arrived, I was still wondering what the fuss was all about. After all, it is just a mug.Then I used it and everything changed...The mug is extremely well insulated despite the thin walls. I never have to worry about burning my fingers when I pick it up.I drink a lot of coffee from my Kuerig single cup brewer so I measure the water with my mug. The thin walls result in a perfect pour.Unlike my old mugs. water does not run down the sides and onto the counter when I fill the machine.I was impressed with the precise temperature control. I have found that 136°F is ideal for me. When I buy coffee at a coffee shop and take it home, I skip the microwave and let the mug warm it to my ideal temperature. Yummy!The mug's light flashes when your beverage is too warm and steadies when the drink is at the ideal temperature. No more burned lips and mouth!The battery lasts for an hour or more when not on the charger but recharges itself while it's on the charger and actively warming your drink.A cup of brewed coffee tastes just as fresh after two hours in the mug as when it was poured and is maintained at that perfect temperature down to the last sip or two.I started raving about this mug to my wife who is an avid tea drinker. I offered to let her use my mug ONCE to see for herself. She didn't see what the fuss was all about.Then she used it and everything changed..Needless to say, she now has her own mug and we even have an extra because we needed a charger in the kitchen. All our other mugs are just collecting dust in the cupboard now.