Toastmaster Personal Coffee Mug and Warmer (TMMGW)

I like my coffee piping hot, this warming plate doesn't keep it piping hot, but does ok.I did a test on it using a digital thermometer that was graduated in whole degrees (not tenths)I made a cup of coffee in a Keurig automatic coffee maker into the ceramic mug that came with the unit. I did not heat the mug first....it was at room temperature when the coffee began pouring into it.I preheated the warmer for 15 minutes prior to making my cup of coffee.Room temperature was 72 deg F.All temperature readings were taken with the temperature probe tip located at the mid-point of the remaining coffee in the mug.1. As soon as the coffee was made the temperature was 155 deg F.2. The mug was then immediately placed on the PREHEATED warmer without having taken a sip of coffee.3. 15 minutes after setting the mug on the preheated warmer, the temperature was 130 deg F. (I had still NOT taken a drink of coffee nor had the cup been removed from the warmer)4. 20 minutes after setting the mug on the preheated warmer, the temperature was 125 deg F. (I had still NOT taken a drink of coffee nor had the cup been removed from the warmer)5. I then periodically took a sip of coffee over the next 60 minutes. The mid level coffee temperature continued to fall until it stabilized at 110 deg F.6. With 20% of the cup left with coffee, the temperature remained steady at 110 deg F. for 3 hours.As a reference: I did the same test, however, the warmer was NOT used:1. Removed from Keurig coffee maker the temperature of the coffee was: 155 deg F. (Room temperature was: 72 deg F.)2. 15 mins later the coffee temperature was 122 deg F.3. 20 mins later the coffee temperature was 102 deg F.I like the cup warmer and recommend it, but, for me, I wish it could keep my coffee around 150 deg F.I hope this helps in your decision.

I just LOVE this mug warmer! I've had mine for a year now and can't imagine going without it. In fact, I bought a second one recently just to make sure I'd never have to! I'm disabled and sometimes have trouble holding on to things. Because of that, I've actually dropped my coffee cup onto this warmer I don't know how many times. I use very large mugs - not the tall ones, but it's bigger then the 12oz one they send with it, and mine's pretty heavy. Because I kept dropping my cup, the white plastic around the warmer actually cracked. I was afraid it would stop working but it never has! It just keeps on doing it's job no matter what. You can't ask much more then that!For those people who were disappointed because it wouldn't heat their coffee up, it's not designed to do that. It's designed to keep a hot cup of coffee (or whatever) hot and that's all it does, but it does it very well.When I wanted to buy a second one to be sure I wouldn't have to go without, this particular one was out of stock. I waited months till they got more in stock to order, because I didn't want to have to take a chance that I'd be dealing with something inferior. It's a great product that does exactly what it's advertised to do and I highly recommend it.

I bought this item based on the reviews and after looking at all other similar items and their reviews. This has been a great for my work. I spend most of my day in front of a computer/at at desk (like most of us today) and many times I get completely into what I am doing and forget to drink my tea, which ends up getting cold before I finish it. Well, no more. My tea stays hot until I finish it.It does have one minor deficiency; it does not have an automatic on/off switch, so you need to be careful placing it in an area where you are not going accidentally cover it with any pieces of paper in case you forget to turn it off. On the other hand, the benefit of that feature is that you can turn it on before you go to get your coffee/tea/hot chocolate/soup so by the time you get back to your desk, the plate is already warm.Note; this item is not for heating up a cold drink (as, oddly, some people seem to think), but rather, it is to maintain the temperature of a hot drink. Finally, it does come with its own cup, but you can also use your own.

I Read various reviews, seemed it was almost even with the 'haters -vs- the lovers'. So, being really tired of 'cold' coffee all the time, - I ordered (2). First, I don't like really hot coffee, - I don't like burning my tongue. That said, I tried putting room temperature water on it, - just to see what happened. It warmed the water in an open top cup to about 110-120℉ ±. It took some time to do this, and I would't suggest on doing it to warm ones coffee; - but, I was still Impressed by it. Should I desire my coffee to be a bit warmer, I just put a 'wide-mouth mason jar lid' (not the ring) on top of the mug (the lid fits my mug perfectly). This adds about 10℉ ±. One note, when you take your cup 'off' of the warmer, you might want to be careful where you 'set it down' - as it gets hot enough to case damage to some things. Thou I'd like this warmer to last me for a long time, I'd buy another one (that is, if these make it for at least a year).

This warmer from Toastmaster is the perfect warmer for me. I'm retired and the first thing I do in the morning is to pour a fresh cup of coffee from my pre-programmed BrewStation and read several newspapers from my desktop. Sometimes I don't sip my coffee for 20 or 30 min.,but the warmer keeps my coffee more than warm. I don't like my coffee Hot nor Warm,I like it in the middle, if you know what I mean, and this works great.One thing I will mention is the warming surface, it is just over 3 inches in diameter which is perfect for me as my favorite cup is the same size as the cup that came with the warmer. Matter of fact my new cup is my favorite now, although like other writers, I have many unused cups.Like my old warmer that wore out, the on off switch is on the base as is the indictor light not on the cord like some are advertised which is good. So, if you are in the market for a first rate warmer and not sure which one is the best, try this one. I think you will be pleased with it.