Soon you may never have to worry about putting your beer or soft drink cans in the fridge ever again. A company in Florida named Tempra Technology has developed an affordable self-cooling beverage can which can bring the temperature of your favorite drink down to a chilly 17 degrees Celsius with just a twist of your wrist.
New Zealand News - World - Cool can has own fridge
Chief executive Barney Guarino said the company was talking to several brewers and the cans might go on sale this year, although the technology was still too expensive for mass-market products.
The can is double walled and the chamber surrounding the drink is filled with a water-containing gel which is separated from a vacuum in the can’s base by a breakable seal.
A quick twist of the base breaks the seal, allowing the vacuum to lower the pressure and so evaporate the water from the gel. The heat needed to evaporate the water in the gel of the outer chamber is drawn from the drink itself, causing the fluid to drop to just above the freezing point of water in minutes.
As someone who is traditionally too lazy to bother putting cans in the fridge on a regular basis I’ve gotten used to drinking my pop warm, but soon I may not have to. Yippie!
Thanks to neodromos for sending me the link.
Posted on 04/30/2004 at 06:45 PM 
Posted on 05/01/2004 at 08:54 AM 
It’s too bad I only buy soda in bulk, read, plastic bottles and not cans. Then again, I always refrigerate, so while it’s an innovation that will doubtless prove amusing enough to guarantee repeat business from me, it won’t succeed those good ol’ 2 liters.