November 14th, 2009 | 
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Perfect Coffee Cup
Physicists in Germany have invented what they say is the “perfect coffee cup.” What does this mean for your daily cup of coffee? Your favorite drink can now stay the perfect temperature longer, thanks to some crafty thermodynamics.
Many factors influence the taste and quality of a cup of coffee, including the grind, blend, roast and drip. But one of the most crucial elements of coffee is its temperature. Coffee is best served at approximately 58 degrees Celsius. Even when coffee is served at this temperature initially, it quickly cools when exposed to the air at the mouth of the coffee cup.
The “perfect coffee cup” works by absorbing some of the coffee’s initial heat into the swirls of aluminum inside the ceramic of the mug. As coffee cools, the mug releases some of the heat back into the contents of the mug. Not only does your coffee stay close to 58 degrees Celsius longer, but the design of the mug also ensures that it starts that way, too.
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