Never thought I would see the day that Coffee could charge your cell phone or iPhone, but it can. As I found out from this site.  None other than our friends at Ikea.  Here is a breif snippet from the article "Soon, you and your phone may be able to charge up on coffee. Well, sort of. While you’ll still be getting energy from caffeine, your phone and other devices could charge from the heat of your morning brew. That’s the idea behind Heat Harvest, a mock-up design from two Copenhagen design students. Used alone or incorporated into a table top, Heat Harvest would capture the energy from objects that give off heat (like your cup of joe, a bowl of soup, or even your laptop) and then charge tech devices placed on top of it wirelessly." Source  

Read More Here: Coffee Can Charge your iPhone, Really