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

4.2 | 57,023 ratings

Price: 13.68

Last update: 01-10-2025

About this item

17 watt mug warmer for use with coffee, tea, hot cocoa & more
Easy to tote and take anywhere
Surface easily wipes clean
On/off switch with indicator light
Longer power cord for increased mobility. Refer to the PDF attached below in Technical Specification for the User Manual

Product information

Item Weight	0.21 Kilograms
Capacity	8 ounces
Number of Trays	1
Voltage	1.1E+2 Volts
Wattage	17 watts
UPC	072179223504
Global Trade Identification Number	00072179223504
Manufacturer	Mr. Coffee
Product Dimensions	5.12 x 1.1 x 7.48 inches
Item Weight	7.4 ounces
Department	Unisex-Adult
ASIN	B000CO89T8
Country of Origin	USA
Item model number	MWBLKPDQ
Customer Reviews	4.2 4.2 out of 5 stars 56,963 ratings 4.2 out of 5 stars
Best Sellers Rank	#4,444 in Home & Kitchen (See Top 100 in Home & Kitchen) #9 in Tea & Espresso Beverage Warmers
Is Discontinued By Manufacturer	No
Date First Available	July 12, 2006

Top reviews from the United States

WayneChicago

True tips and use for SOUPS and preparing lunch

Reviewed in the United States on December 14, 2011

Mr. Coffee mug warmer: As I use it, I will update this review. Cord is long (3.5 feet), the actual heating surface is 3 and 3/8 inches diameter, and it's well made and inexpensive. It turns on with a red light on the unit (unlike another brand that has the on/off switch on the AC electric cable). A superb substitute for schlepping my soups in with a thermos every day (hard to clean, extra work at home, etc.)

My goal: warm soup at my desk. I don't want an open flame (e.g. alcohol cook stove), or a very hot 750+ watt cooking element/hot plate. A small Crock pot is hard to eat from and wash--so, I thought this Mr. coffee might be what I want. I don't drink coffee, but could see using it for hot cocoa.

The test: I can put a room-temperature full 8 ounce Campbell's Soup--chicken noodle, to be exact--contents in an enamel-coated aluminum 12 ounce cup with lid, and in 30 minutes it's fairly heated and I could eat it, but in one hour, it's nice and toasty and ready to eat. It's hot enough that I cannot touch the bottom of the cup. I was concerned about the honest reviews that said this does not get hot enuogh--but after using daily for a week, it's mighty hot. I certainly cannot touch the warmer surface--it's far too hot. My office is not near a microwave, and this is a lifesaver for me. I may try canned stews next. I adore eating at my desk. A fellow office mate actually warms water--not to boiling, but very hot--over and hour and then dumps it from the cups into camping meal bags (cook in bag types, like Mountain house) and eats well every day. Sure, if someone had a microwave it's faster, but why challenge the entire office for microwave time in the grody kitchen room when you can set this out an 11AM and be eating well by noon.
Here's the exact cup I use, which fits the Mr Coffee well.

Coleman 12 Ounce Enamelware Coffee Mug (Blue)

Tips: The cup makes a big difference. I use an enamel Coleman aluminum cup, which holds one soup can well (not too close to the top), and conducts heat exquisitely. I have no clue is a hard and thick ceramic coffee mug would work. Also, I put a lid on the cup to hold heat, and so I don't get paperclips and junk in there while it "cooks". Lids reduce heating time by 18% (according to camping websites). I use a simple ceramic drink coaster that I had at home for my lid--any nonflammable lid would work. The lid helps. Also, the Coleman mug that I use is flat bottomed, thus using the entire heating element successfully. A curved bottom mug may not heat as well.

P.S> Okay, I just did Campbell's Vegetable Beef soup in it today, thick and I added no water, and it took about 1.5 hours to get fully hot. Still worked great, but clearly the thicker the soup, the longer the heating time. Also, the heating is most intense at the bottom of the mug or cup, so (1) stirring helps, and (2) a tall style ceramic mug or cup would not be as good as a squat one.

I bought a second one for home since I liked the first one so very much, and to test if the first one was a fluke and just extra hot or something. Guess what, no fluke. The first and second are equally as hot.

Postcript: just for kicks, I put tap water at room temperature in the blue Coleman cup for 60 minutes on the Mr Coffee warmer, and I couldn't even stick my finger in it at all. It was hot! Not boiling, for sure, but clearly hot. I wouldn't want it that hot to drink or to eat. And, so, I added an ice tea bag and took it off the Mr Coffee and drank tea. PLenty hot! Lovely! Bon appetite!

Angelica A.

Last for years

Reviewed in the United States on November 23, 2024

I’ve had this warmer since 1/2021. I use it all the time. I now keep it in my office at work. Yes the paint chips off the plate but thats really an aesthetic issue I don’t care much about. It warms my drink but never too hot. I’ve also left it on at work for hours and never had any issues. I love that it works with any cup and also surprisingly works with my to go coffee cups like starbucks. I dont leave it unsupervised with such cups but I’ve never had any issues with it and still warms like any mug. Worth every penny!

natalie

Works well, but heating surface coating wears off immediately

Reviewed in the United States on December 21, 2024

Pros: It does heat up fast, and keeps my coffee at a good temperature. The longer cord length is helpful.

Con: The black coating started wearing off of the heating surface after the first use, and has gotten worse with each use.

Overall I would still recommend it, if you don’t mind the heating surface looking scratched up.

Dan Rogers

Simple solution to cup warmer not heating fast or hot enough for cool, full cup-- now it can, using an old hiking tool & physics

Reviewed in the United States on July 15, 2014

There is a problem cited throughout these reviews that since the mug warmer is not a hot plate, and doesn't reach higher temperatures, it can only help keep a mug warm. It cannot make hot a cup of coffee or tea from a cold start. I wondered about this, and tried it out, and yes, it is a problem. But there is a simple solution, cost about 10 cents, using a solution from physics and proven on long hikes. I tried it, and it works better than expected here as well. I can take a cup of water from a cold start to being just the right temperature for sipping, not quite steaming, but hot!

Here's the physics: there are several types of heat, the most important in this case being radiant heat. Radiant heat is called radiant heat because it travels in rays. In this case, it comes up from the surface of the warmer, and yes, there is some other types of warming going on, but most of what seems to be happening to the liquid is that the radiant heat is traveling through it, and then dissipating into space. The cup loses other forms of heat too, but by just solving the radiant heat loss problem, you will have solved the entire problem of your warmer not being able to warm full cups of coffee or tea, or make cool water warm to start with for dissolving the tea or coffee in it. (I even use loose tea with this solution, and it works fine; it gets hot enough that it does not have to be a mix.)

So what do you do to overcome radiant heat loss? A burner would just apply more heat. But if you wanted a hot stove in your office you'd buy a burner, for about 5x the cost of this, and then run the risk of injury in tight quarters. In this case, apply a radiant barrier. A radiant barrier can be fancy or expensive, but you can fashion a very serviceable and even decent looking one with practice out of about a foot of aluminum foil.

Anyone who has been camping or tried to travel light while distance hiking knows that you can make a light pot cozy of aluminum foil that serves as a shield against win. The surprising thing is that this simple material we are used to using for wrapping pot roast has the amazing property as applied of cutting your need for fuel dramatically on the way to boiling water.

So applied to the mug warmer, fill your mug, put it on, then by folding the aluminum foil a few times to a) stiffen it up, and b) fit around the cup, make a loose fitting wrap that sits just outside the mug, not too tight since you want to re-use it many times. Then apply a paperclip, preferably a small binder clip to joining the foil. Of course you can use other things as well. This way it lifts right off, and can be put right down.

Of course, just going around the outside of the mug, the most important area is left open. So fold and refold a second piece of aluminum foil into a stiff square that rests on top of the lip of your mug. Actually this part alone is often sufficient to keep your coffee far hotter than the burner alone, and will work to heat up cool coffee. The additional loose wrap around part just makes it that more efficient.

This really worked well for me, to the point I am very pleased, and don't have to run down to the microwave to re-heat my coffee or tea, but can do it from scratch, right on the cup warmer.

I like the truly functional aspect of it, that I made it myself for ten cents, and can show a little creativity in sculpting it into something that looks alright, plus it recalls some good hikes . . . But if this is too man cave for you, there are pot cozies you can buy on amazon. Just make sure that they have a radiant barrier in them, or put some foil inside them too, tho no one will see it. That way, you keep recapturing radiant heat, and this is probably 90% of the battle. This way, by turning the radiant heat back on the cup, and back again, again and again, you multiply its effect pretty dramatically.

IF this proves helpful, or you think it may, please give it the thumbs up. I'd like to see it rise as a helpful review so it can help solve what so many people have complained of.

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