Engineers introduce 'beans' to cool and then maintain hot beverage temps
Tuesday, May 3, 2011 - 12:00
in Physics & Chemistry
(PhysOrg.com) -- Buddies and mechanical engineers, Dave Petrillo and Dave Jackson, have, thanks to Kickstart.com, begun a business selling the Coffee Joulie (clearly a play on the word for joule, a unit of energy, and jewel, the stuff you wear as bling), a stainless steel bean theyve invented that will first cool a hot drink, then maintain it at a consistent 140°F (60° Celsius) temperature for up to five hours if the container is kept closed.