Prior to purchasing this mug warmer, I read the reviews, and I wasn’t sure if this product could my coffee hot enough. I have a large stoneware mug (16 oz. capacity). Turns out, the mug fits fits nicely on the warmer, and my coffee does stay hot. I made a little aluminum foil cover for my coffee mug, to keep a “film” from forming on the top of my coffee (I use heavy cream in my coffee). Not only does the foil cover keep a film from forming, it prevents heat from rising from the mug. My coffee stays nice and hot for as long as it takes me to finish it, which can take an hour or more. When my coffee is partially gone, the mug warmer makes the remaining coffee almost too hot to drink! Get this warming plate and make a simple foil cover for your mug; your coffee will stay hot! Another thing: There is no heat buildup under the warming plate. I have it sitting directly on my desk top and the wood feels barely warm from the product.
That first steamy sip of coffee is eye opening. But after 10 or so minutes, the coffee has turned tepid. I enjoy my morning brew to be steaming hot but not scalding hot.
I’ve tried thermo cups and they work pretty well but they are somewhat clunky. I have also tried battery and plug in coasters (like mini hotplates) and they good for a few months and then they start losing their heating ability. Probably because I’m always spilling liquid on them.
I came across this ceramic mug that maintains the temperature of the coffee until I get down to the last gulp. It is good at keeping the coffee steaming without scalding and the ceramic cup helps to keep the cup from getting to hot to handle. The only fault is that the cup only holds 12 ounces.