an idea from one of my readers…


Mac Funamizu emailed me and wrote:

Hello. I’m a designer working in Tokyo. I have long wished a USB powered coffee warmer like shown in the attached image, but I have never seen anything like that. So I’d appreciate if you could introduce the idea to everyone and hopefully someone could realize it into a product.


Make sure to have a look at Mac’s blog. It’s filled with ideas for services/products.

6 Comments leave a comment below

  1. I’ve seen a few of these around, albeit now fancy software giving you coffee diagnostics :)

  2. A friend of mine works for an electronics company that stocks USB coffee warmers. I don’t think it comes with any jazzy software, nor am I sure about the look of the cup – it reminds me a little of a bin. I am assured, however, that it does a fine job of preventing cold coffee!

  3. Thank you very much for taking this up, Tina.
    Yeah, I first thought a coaster like the ones Peter and Harley introduced is more realistic because the cup has to get WET to be washed.

  4. you need a usb thermometer:

    Take the cover off and attach it to the mug via a wire.

    Then use flash to interpret the data and use it to control the power to a second usb heating device like the ones mentioned above.

    simple really.

  5. ThinkGeek has a mug warmer, not quite a plug in cup, but it might suffice