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Coffee Joulies --is it good?
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Discussions > Espresso > General > Coffee Joulies...  
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ronpistolero
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Posted Mon May 16, 2011, 11:10pm
Subject: Coffee Joulies --is it good?
 

Hi all. I would like to find out if anybody has tried this and if it is so that it affects the taste of coffee negatively as it is suppose to extend the "sweet spot temperature" of the coffee. Your thoughts would be appreciated:  click here


Regards,

Ron
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jbviau
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Posted Tue May 17, 2011, 4:24am
Subject: Re: Coffee Joulies --is it good?
 

The only firsthand review I've seen so far was on Sprudge. I file this product under "solves a problem I don't consider a problem," but to each his own!
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JasonBrandtLewis
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Posted Tue May 17, 2011, 6:50am
Subject: Re: Coffee Joulies --is it good?
 

How is this any different from the glasses/cups made by Bodum, Frabosk, and any of a dozen other double-walled, insulated cups/glasses/mugs?

 
A morning without coffee is sleep . . .
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SteveRhinehart
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Posted Tue May 17, 2011, 7:22am
Subject: Re: Coffee Joulies --is it good?
 

Just that the joulies themselves can be placed in any mug of any size, won't break if you drop them (presumably), and will hit you square in the teeth when you go for that last drop.
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frcn
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Posted Tue May 17, 2011, 7:35am
Subject: Re: Coffee Joulies --is it good?
 

I think they are misunderstood. They are best used in a thermally insulated vessel like a travel mug or thermos bottle. You pour in freshly brews coffee at full brew temperature and the Joulies will absorb the "excess" heat energy, quickly bringing the coffee's temperature down to that which can be consumed. After that, they slowly release heat energy, keeping the coffee at a drinkable temperature for a longer time than normally would be experienced. So it flattens the curve out in the middle, so the beverage is at the 125-135 temperature for a much longer period of time than would normally be experienced.

 
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calblacksmith
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Posted Fri May 20, 2011, 7:23am
Subject: Re: Coffee Joulies --is it good?
 

Wow, really?
In high end Audio, there is a LOT of snake oil sold in the form of magic wires, rocks to place on your speakers and the like, stealing money from those who don't know or are unwilling to know or have too much money to know better. there is a sucker born every minute and the high end audio world is full of them.

It seems that the same hucksters have moved into coffee! Those Joulies look a LOT like BRILLIANT PEBBLES for home audio!
http://www.machinadynamica.com/index.html

my feelings about such products:

calblacksmith: BSmeter[1].gif
(Click for larger image)

 
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EricBNC
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Posted Fri May 20, 2011, 8:04am
Subject: Re: Coffee Joulies --is it good?
 

SteveRhinehart Said:

Just that the joulies themselves can be placed in any mug of any size, won't break if you drop them (presumably), and will hit you square in the teeth when you go for that last drop.

Posted May 17, 2011 link

I think keeping the lid on the mug is a necessary precaution.  I do wonder how many of these will be accidentally swallowed.

 
I chew coffee beans with my teeth while gargling with 195 F water to enjoy coffee. What is this "coffee brewing" device you speak of?
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frcn
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Posted Fri May 20, 2011, 8:18am
Subject: Re: Coffee Joulies --is it good?
 

First, there is no snake oil here, and such a comparison is quite unfair. This is just basic and simple thermodynamics and that is all. The Joulies are quite large compared to coffee beans. They are hollow stainless steel with a heat absorbing wax in them. Put them in coffee they absorb heat. When the coffee begins to cool, and is at a temperature lower than the Joulies, they release heat energy. It is an equilibrium of thermal energy. Instead of the heat energy being released and wasted, or having the coffee stay at higher-than-drinkable temperatures for extended periods of time, the Joulies store that energy. There is nothing subjective about it - it is just science. We aren't turning straw into gold here.

 
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SteveRhinehart
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Posted Fri May 20, 2011, 8:26am
Subject: Re: Coffee Joulies --is it good?
 

Yeah, actually I never doubted the plausibility. I first found out about them around when I started playing with methylcellulose (another non-toxic phase changer), and I imagined their proprietary substance could easily have been methylcel. Regardless of what it is, they don't do anything truly revolutionary (a hot stone could perform a similar role), but I just can't see myself finding a use for them. Others have clearly found elsewise - they racked up quite an impressive surplus of funding on their Kickstarter page.
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calblacksmith
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calblacksmith
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Posted Fri May 20, 2011, 10:11am
Subject: Re: Coffee Joulies --is it good?
 

I'm sorry Randy but I see them as a product to fill a need that did not need filling until they were invented. That in my book counts as snake oil.

I see how, in theory, it works and I don't dispute the theory either but, really? Insulated cups do the job just as well or better for me and when I am done, I toss the cup and don't need to wash, store and take care of something all day that I didn't need in the first place. I have a very thick ceramic coffee mug at work (the same give and take of heat with the cup as with the "balls")  and I use an air pot to keep the coffee warm. Heck, I have had times that I was unable to drink the coffee and the next day it was still warm enough to comfortably drink. Sure it had diminished in quality but 20 hours after brewing, the air pot kept the coffee more than luke warm, like I said, warm enough to drink, and I hate cold coffee.

A product without a need is snake oil.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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