Heat-Sensitive ON/OFF Coffee Mug

Posted by Joel Johnson, November 30, 2007 9:56 AM | permalink

This heat-sensitive coffee mug turns from "OFF" to "ON" when filled with hot liquid—preferably coffee, although ice-cold laudanum might also be appropriate.

It's 25 bucks right now at Charles & Marie, which is painful. Doubly so because my experience with heat-sensitive coffee mugs is that the plastic lining that actually does the changing can be too easily washed off, especially if left in a wet sink.

Soupe Du Jour [CharlesAndMarie.com via Technabob]

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Discussion

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#1 posted by Josh Smith

, November 30, 2007 10:58 AM

Hmm, If it was also a self stirring mug for the price I'd probably spring for it.

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#2 posted by Gary61 , November 30, 2007 12:10 PM

'On' and 'Off'???
Why not 'Hot' and 'Not'?
or maybe 'Full' and 'Empty'?
or 'Chillin' and 'Smokin'?
howabout images instead, like 'igloo' and 'fireplace'?

I mean, seriously, just who WERE the design geniuses behind thse word choices?
Mark, wouldya be so kind as to smack them over their heads?

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#3 posted by kristofer

, November 30, 2007 5:56 PM

While interesting, I've given up on coffee mugs, they just don't hold enough liquid, I just stick to the large insulated metal travel types that hold 16oz plus.. less trips to fill it up!

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#4 posted by Eidiard , December 1, 2007 5:06 AM

For me I think cold it should say "DANGER" and when warm it should say "SAFE"

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#5 posted by PopeRatzo , December 2, 2007 5:37 AM

Kristofer, you could rig up a belt of several of those large insulated metal travel jugs and some rubber tubing and perhaps lab-style glass valves, and you wouldn't even have to get up from your chair for days at a time.

"Less trips to fil it up!" Indeed.