Gewgaw cools down coffee to 140 F, then keeps it there for hours

Mark Frauenfelder 4:01 pm Tue Apr 26, 2011

So far 3,383 people have pledged $205,650 on Kickstarter towards the Coffee Joulies project. I didn't know that coffee cooling down too quickly was such a big problem.

Coffee Joulies work with your coffee to achieve two goals. First, they absorb extra thermal energy in your coffee when it's served too hot, cooling it down to a drinkable temperature three times faster than normal. Next, they release that stored energy back into your coffee keeping it in the right temperature range twice as long.

This amazing feat of thermodynamics happens thanks to a special non-toxic material sealed within the polished stainless steel shell. This material is designed to melt at 140 degrees Fahrenheit, and absorbs a lot of energy as it melts. This is how Joulies cool your coffee down three times faster than normal. Once it reaches this temperature, the special material begins to solidify again, releasing the energy it stored when it melted. This is how Joulies keep your coffee warm twice as long.

Coffee Joulies – your coffee, just right

Previously on Boing Boing: Coffee Joulies

Review / Logitech MX Keys

Logitech’s MX Keys [Amazon] is what it finally took to lure me away from mechanical keyboards. It’s a slim yet solidly-constructed full-size model that's similar to and superior to Apple's… READ THE REST
Microsoft to permanently close its retail stores

Microsoft is to shut shop on the high streets and malls of America, permanently closing its 116 retail stores. Only 10 were overseas; flagship stores in New York City, London,… READ THE REST
Traintrackr is a light-up circuit-board map of the London Underground or Boston Metro

Traintrackr is a powered circuit board showing a map of the London Underground, lighting up in real time to show train positions on 333 stations on all 12 main lines.… READ THE REST
Short Post, just one paragraph

Dessert cheesecake wafer bear claw fruitcake. Fruitcake chupa chups donut candy canes marzipan. Apple pie sweet roll tart chocolate cake macaroon marshmallow carrot cake gummi bears sweet. Pastry sugar plum… READ THE REST
Save 50% on a 1-year subscription to Dashlane's premium password manager

We all know vital information about ourselves and our private digital accounts can be compromised by cybercriminals. However, many would be frightened to know just how compromised they and their… READ THE REST
The Bite Helper removes the itch of a mosquito bite in seconds

While mosquitoes have certainly earned their title as the deadliest animal on earth, their impact on most of our lives is usually a lot less consequential. But even though they… READ THE REST