No need for the refrigerated vending machine - Non-toxic self chilling cans - The Instant Cooling Can

Chill 1
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As long as you can wait three minutes, the patented technology can drop the can’s temperature by a minimum of 16.7° Celsius or 30° Fahrenheit.

When activated, the desiccant contained within a vacuum draws the heat from the beverage through the evaporator into an insulated heat-sink container. Leaving your beverage cold and ready to consume.

The cans are non-toxic, 100% safe and eco-friendly. Apparently, they are also easy to operate, transport and store, using no carbon dioxide, CFC, HFC or any other compressed gas.