Beginning Jan. 2, consumers will be able to buy a 10-ounce container of Wolfgang Puck gourmet latte at the store and heat it just by pressing a button on the can.

No electricity. No batteries. No appliances.

"It will expand the way people drink coffee," says Puck, the celebrity chef.

How does the can do it? A single step mixes calcium oxide and water. It heats the coffee to 145 degrees in six minutes -- and stays hot for 30 minutes.
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The self-heating coffee-in-a-can will retail for about $2.25 -- less than a Starbucks latte.

--Chicago Sun-Times (Hat tip Boortz)