Mr. Coffee Mug Warmer for Coffee and Tea Portable Cup Warmer for Travel Office Desks and Home Black Gifts for Teachers

I bought this warmer as it was way less expensive than all the others. It works just fine. Will fit almost every size mug, has an easy on-off switch and keeps your coffee/tea, whatever, very, very warm. Depends how much liquid is in your cup, and what temperature your cup is when you put it on the little plate. Will not heat a cup of cold water with a tea bag in it. I left mine on for two days, the coffee was way gone, and, had a hard film in the bottom of the cup. Soaked the cup and the burned coffee dissolved, and my little Mr. Coffee still warms up- for another day. Linda Kesselman

I put off buying this because I thought it was a luxury I really didn’t need. I was wrong. It has been so nice not to have to microwave it over and over so it was hot to drink or rush to finish my coffee before it got cold. Just buy it and relax. This keeps it at the perfect temperature to drink for as long as you take to drink it. It doesn’t have all the bells and whistles that I thought would be nice but it’s perfect. Switch it on and that’s it. When you’re done switch it off. Stop putting it off. It’s not expensive and your mornings will be so much more relaxing.

It keeps your coffee (or soup) hot. It is inexpensive. But bulky and unattractive. It also does not have an automatic shut off. However. Inexpensive.

OK, I read a number of the reviews posted here before purchasing this mug warmer, and did a little research to check what the power used (wattage) was supposed to be. The manufacturers seem to want to keep this a mystery for some reason -- all of them. There were reports that this Mr Coffee device had the same wattage rating as other similar mug warmers that had decent feedback ratings. So, I decided to try it. The power number mentioned was 17 watts, which sounds about right for a device this size. The watts of power generated is THE most important characteristics of any heat producing device and this Mr Coffee mug warmer seems to live up to the purported 17 Watt rating.They don't put any power or energy information anywhere on the packaging material and there is no information in the small instructions pamphlet either but the bottom off the device says: "120 V 60 Hz 17 W", so, 17 watts it is.Now, if this electrical device consumes around 17 watts, you can assume some of the heat energy is lost to the table and the edges of the plastic housing and if you put your hands around the device, there is some loss there and my desk beneath does get a little warm. So, clearly 17 watts is not going into the cup. But for such a simply made device, like all the others I see advertised too, it appears to generate a majority of the heat energy at the indented area where the cup will sit.And by the way, the heating are where a mug sits is 3-1/4 inches in diameters -- which will accommodate some pretty big mugs.The depressed area where your coffee mug sits gets noticeably warmer than the sides of the device. It is hot but not so hot I can't touch it. I wouldn't want to hold my fingers there for very long but it's not like its glowing red. It's touchable.So, I took it out of the packaging, plugged it in, set a cup of coffee on it, and did a little work -- like maybe twenty minutes.The coffee was a bit cold to start, not even cool, and when I picked the mug up a little later the coffee was warm, the mug was warm..The mug warmer doesn't heat it to a hot coffee temperature but check it's name -- it isn't supposed to. It "warms" the coffee.As a couple of reviews pointed out, the manufacturers are skirting the boundary of generating enough heat to make it dangerous to be left heating on a desk. You can't have a relatively small, inexpensive plastic device have a red-hot burner on it, not when it's intended use is sitting next to my monitor amidst piles of note and maybe near a textbook or two.If you want really hot coffee, clear a space on your desk and get a true hot plate with which you can also fry bacon. Or get a small stand to hold a microwave. After all that, I was quite pleased with how effective it was in "warming" a drink.If you want it to make your coffee hot hot, you will be disappointed. If you want your coffee to stay warm, it does it's duty.

I wanted to like this product but unfortunately there was constantly a like slightly burning plastic smell and the top surface where you put the mug is instantly damaged by the ceramic bottom of the mug it's expected but not immediatelyFairly easy to use you just put the switch on although it's easy to forget it's onThere are so many different types on Amazon of this mug warming product category I would suggest being a little bit more thorough even with how I trusted this brand it is Affordable but for a reason that you'll find out when you get it and I feel like a $10 more investment on it different product would have a little bit more of a satisfying feeling I just wish that this brand had a little bit more pricey kind of modern one and if they do that's on me for not knowing but this specific affordable product is a little bit too iffy for me.

When I don't drink my coffee right away, I just place it on the coffeewarmer and put a cover on top.