Norpro Decorative Cup Warmer 3.75'/9.5 cm

My cup warmer is on any time I'm awake (and I don't sleep much).This little guy does the job! I use a HUGE coffee mug (holds nearly a liter) and this is the only one I've found which accommodates its base. This warmer keeps coffee at the perfect, consistent temperature no matter what level its at.I've spilt coffee on it at least a dozen times. The sugar sometimes results in the warmer sticking to the bottom of my mug when I lift it. Once it fell and a piece broke off the side. -But the spills & breakage have had no impact. (Wiping it with a wet paper towel - especially when hot - easily removes the stickiness.)I purchased one in 2007, 2016 and 2021. -So if you use it for an average of 18 hours per day, you can likely expect similar results.Love this product!!

As you can probably tell from the title I do not like the look of this thing. It's big, bulky, and the marbling look just isn't great. So why did I give it 5 stars? It does what it's supposed to do and well. I think this is one of the last of a dying breed of real coffee warmer hot plates that are being replaced by underpowered but sleek looking modern units. If you look at the reviews of the modern looking mug warmers, the views are quite mixed on heating potential. Some say it can keep a cup of coffee hot but not warm it up if it already cooled down. Some say it can only keep a cup of coffee hot if it has a lid on it. This thing can do both. I have all 'concave' coffee mugs which mean the bottoms aren't touching except for a ring around the edge. Despite this feature of my mugs, which isn't ideal for mug warmers, this thing keeps my coffee piping hot without a top. Just as an experiment I turned off the mug warmer and let half a cup of coffee cool down to a luke warm 100 degrees. About an hour later I checked on it and it was a respectable 135 which was hot enough to drink again. Not bad and it didn't have the stale taste of microwaved coffee.Anyway if you want something that actually works than pick this one up and don't bother with the others. It doesn't have any bells and whistles though. There is no auto shutoff so you have to make sure to turn it off yourself and it does get hot to the touch on the outside so keep it away from children. The nice thing is the switch is old school so it does shut off the power completely to it. Those are the tradeoffs so if you want something with a 'pressure switch' and the like look elsewhere. It's by no means perfect but it keeps hot coffee hot and that's all I wanted.

I have been looking for one of these for a while now, because I so often get busy at work that I find my coffee cold and less than tasty, and, with winter weather now on the way, that happens a lot faster if I leave my cup parked somewhere.I got a "cup warmer" that was useless (the "Mustard" USB one that looks like a big cookie) and, in trying to learn why, my fellow Amazon shopper reviews (thank you everyone who posts reviews!) educated me on these devices, that mostly all are useless since their wattage was decreased, years ago, in response to concerns that coffee could get "too" hot for those who like to sue people over such ridiculous stuff. Like spilling coffee is someone else's fault?? Puhh-leaze.....Anyway, so apparently this is one, however, that still has some decent wattage, plus it plugs into a regular outlet (not a weenie USB port), has a switch right near the warmer, a light to tell you it's on, and is made of some really premium materials, a hefty ceramic type base and a quality "hot plate" as the warming surface. And, that is all true! It has all of that, and is a GREAT product. I'm very happy with it.Now, the other thing I learned from Amazon reviews of these various warmers is the secret most manufacturers don't tell you, or say in very small print, which is that you need a flat bottom cup/mug. Now, this is so important that I can't believe makers of these are not required to announce, "WORKS WITH FLAT BOTTOMED CUPS/MUGS ONLY" as a disclaimer or notice for use because, when I went through my cup inventory at work, and at home, NONE are flat-bottomed, and many, in fact, have a bottom arched upward that would never contact the surface of the hot plate area.So, beyond low wattage, the other problem is that many cups don't even make enough contact with any warmer to be warmed, at all, even if the thing was pumping out some respectable wattage.But, as the Fates would have it, after ordering this and and thinking on where I might find a flat bottom mug, that very day, on walking into Starbucks for coffee, there before me, on display for Christmas, was a flat bottomed mug! And, a very cool looking one, I might add, and metal, so an excellent conductor of heat! How about that?!So, I got back to the office, cleaned the mug, poured in my semi-warm coffee, and fired up this warmer.The first fifteen minutes or so...not much. Coffee didn't get colder, but didn't really get warmer either, and, despite this claiming to work for keeping a temperature, not for increasing it, I was kind of hoping it might also warm up an existing beverage a little, so I waited...Going on toward a half hour? Coffee was getting warmer! And, as time ticked by, this thing became more than a warmer -- it became a coffee "re-heater!" In fact, just for fun, I left it on there a while longer, to see how hot it might get, and after about an hour it was near to steaming, which is awesome! So, I'd say it keeps it as hot as a warmer on a decent coffee pot, for sure. If the coffee had been piping hot when I'd put on there, I have no doubt it would have stayed that way, but it's great to know that even coffee that has cooled to lukewarm will actually get returned to a "hot coffee" drinking temperature.I mean, not that I want to drink a cup of coffee that's been sitting around for three hours, lol, but I was just really impressed with this, and I now have found a solution for no more cold coffee, especially since I'm not a fan of radiating my food in a Nuke-O-Wave oven.Excellent product, and, with the right mug of course, this is what you want to keep your coffee nice and hot, and even rescue a cup that has gotten chilled sitting around somewhere.Highly recommend!!!!Thanks for reading, and I hope this has helped!Thanks again fellow reviewers -- all the detailed reviews of the many other products on here, and this one, educated me to find what I needed.