Coffee Joulies are a new invention that reduces and sustains the temperature of hot drinks, while looking pretty awesome in the process. Their inventors are “two Daves” from New Jersey, who have engineered, prototyped, and produced their first run of units over the last eight months.
They claim that Coffee Joulies are “miniature thermodynamic heat storage devices” which appear to function via some kind of endothermic/exothermic reaction:
They absorb excess thermal energy when the coffee is initially poured too hot to drink, cooling your coffee down to a drinkable temperature three times faster. Once your coffee reaches the right temperature the beans release that stored thermal energy back into the coffee, keeping it in the optimal temperature range twice as long.
They have proven results, too:
And the beans themselves look really cool:
Thanks to Tom Allen for the link – reckon I might try to get a hold of some!