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(Slashdot)   From the annals of Really Important Science: engineering a triple-layered coffee mug capable of keeping coffee at a crotch-frying 140 degrees Fahrenheit for hours   (slashdot.org) divider line 32
    More: Interesting, chemical engineer, high-performance computing, Temperfect, industrial designer, College of Engineering, Raleigh-Durham, building insulation, temperatures  
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1867 clicks; posted to Geek » on 12 Dec 2013 at 5:55 PM (40 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



32 Comments   (+0 »)
   
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2013-12-12 04:35:13 PM
I just involuntarily clenched...
 
2013-12-12 04:44:20 PM
That mug sounds just like Coffee Joulies. They've been around a year or so and work exactly the same way and also change phase at 140°F. (bonus points for working the term for heat energy into the name)

Not sure what's in them, but if it was hydrogenated just right, vegetable shortening could be made that melts at 140°.

I brew my coffee at home into a thermal carafe with a set of those in it. Then often pour pour in into one of those Thermos Sipp mugs like on the Joulies web site. I had the mugs well before the Joulies. Why the joulies? The Thermos people aren't lying. Keeps stuff hot (or cold) for a nice long time. Too hot without the Joulies.
 
2013-12-12 05:10:21 PM
Maybe she has eczema.

I could probably become a thief in the winter.
 
2013-12-12 05:12:22 PM
Wrong thread.
 
2013-12-12 05:14:03 PM
Inside is a chemical insulator that is solid at room temperature but melts into a liquid at 140 degrees Fahrenheit. The insulator - which Maxwell won't identify but swears is non-toxic -

Paraffin wax.
 
2013-12-12 05:15:31 PM
It only fries the crotch if it spills out of the mug, silly subby.
 
2013-12-12 06:01:17 PM

impaler: Inside is a chemical insulator that is solid at room temperature but melts into a liquid at 140 degrees Fahrenheit. The insulator - which Maxwell won't identify but swears is non-toxic -

Paraffin wax.


Yeah first thing I thought of was "wax motor".
 
2013-12-12 06:02:42 PM
I think you're supposed to let the coffee cool down before you give yourself an enema, Subby.
 
2013-12-12 06:25:43 PM
Actually, coffee becomes "crotch frying" at 180°F to 190°F.

I assume by crotch frying you mean third degree "full thickness" burns that were almost fatal, required skin grafts, 8 days in the hospital and 2 years of treatments.
 
2013-12-12 06:32:07 PM
so 90 minutes = hours? Who knew?
 
2013-12-12 06:34:10 PM
Scalding anal coffee isn't my bag, baby.
 
2013-12-12 06:41:33 PM
Highly purified waxes.  Ingeniously practical application for PCM's.  Wish I'd thought of it.

/back to office work
 
2013-12-12 06:44:31 PM
"crotch-frying 140 degrees?"  I call that a medium steak.  165 is beyond well done..

The old McDonald's lawsuit had coffee that was over 180-190F.
 
2013-12-12 06:51:47 PM
Great. Now maybe I can get a patent on my asbestos lip balm.
 
2013-12-12 06:56:07 PM
Thermos french press + Thermos insulated mug = Hot coffee all day.
 
2013-12-12 07:11:53 PM
Anybody mention Joulies yet?

Oh, hey Morch!
 
2013-12-12 07:32:32 PM
I'd rather have a no-sweat, keeps ice cold for 24 hours mug/thing
 
2013-12-12 07:40:01 PM
I don't see myself replacing this.

www.geekgadgetblog.com
 
2013-12-12 07:47:14 PM
Meh, I prefer my method of brewing a piping hot cup of coffee, throwing in some ice cubes, and then chugging it tight lipped so the coffee cools as it passes the cubes.  This method has the added benefit of being so repeatable you can adjust your caffeine intake to "Holy crap I drank too much tequila last night" to "I better get a pick me up before this meeting."
 
2013-12-12 07:48:55 PM

Farking Canuck: Actually, coffee becomes "crotch frying" at 180°F to 190°F.

I assume by crotch frying you mean third degree "full thickness" burns that were almost fatal, required skin grafts, 8 days in the hospital and 2 years of treatments.


The way it's supposed to be.
 
2013-12-12 08:26:55 PM
I think I will just stick to my Tervis Tumblers. They do just what I need.
 
2013-12-12 08:53:49 PM
I would love this out in the field on the oil rigs. I get so busy I come back and my coffee is cold this would be awesome with this damn cold snap
 
2013-12-12 09:03:52 PM
The kickstarter page for this cup, not listed in tfa, looks pretty cool.   I might be interested in getting one for myself.
 
2013-12-12 10:11:20 PM
Hah, joke's on you, internet!  I already have a bomb calorimeter.
 
2013-12-12 10:14:23 PM
content.costco.com

Works for me.
 
2013-12-12 11:00:00 PM
I've never understood the why places have coffee brewed at temps so hot they leave me with a burned palate. Half the reason I go for Starbucks is that their mocha is actual served at a temperature that is halfway reasonable. I hate having to water it down with ice or wait half an hour to drink it.
 
2013-12-12 11:26:47 PM

Mad_Radhu: I've never understood the why places have coffee brewed at temps so hot they leave me with a burned palate. Half the reason I go for Starbucks is that their mocha is actual served at a temperature that is halfway reasonable. I hate having to water it down with ice or wait half an hour to drink it.


It also ruins the taste of the coffee because it brings out more bitter flavor from the beans.
 
2013-12-13 12:07:31 AM
Keeping my coffee hot isn't an issue I have. I keep my mug in the freezer so that my first cup of coffee cools down quickly in the morning.
 
2013-12-13 02:23:39 AM

Farking Canuck: Actually, coffee becomes "crotch frying" at 180°F to 190°F.

I assume by crotch frying you mean third degree "full thickness" burns that were almost fatal, required skin grafts, 8 days in the hospital and 2 years of treatments.


"Full thickness" should have protected some portion of that crotch. Was he Asian?
 
2013-12-13 08:33:21 AM

Mad_Radhu: I've never understood the why places have coffee brewed at temps so hot they leave me with a burned palate. Half the reason I go for Starbucks is that their mocha is actual served at a temperature that is halfway reasonable. I hate having to water it down with ice or wait half an hour to drink it.


Proper coffee brewing temperature is about 198 - 205F

Holding temperature is another story,
 
2013-12-13 11:05:28 AM
He use Fahrenheit ?
nice sciencing, Lou
Wouldn't trust this guy to design a coffee mug
 
2013-12-13 11:51:12 AM
I brew my espresso straight into the cup that already has milk and sugar. When I stir it is cold but then I use the frother to warm it up nicely.

This is all before I put more than a single arm outside of my duvet.

The coffee is drunk before it has a chance to get cold. As it should be. I would know something was wrong if I needed this cup...
 
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