Unlike regular coffee beans, Joulies “work by absorbing extra thermal energy in the drink when it’s too hot, and then releasing that stored energy back into the drink to keep it at an optimum temperature as it begins to cool down.” KickStarter page. Video after the break. Click here for more pictures.

While this might seem to go against the laws of thermodynamics, Coffee Joulies contain a ‘special non-toxic material’ sealed within the beans’ stainless steel shells.

[via DailyMail]