Coffee cup lid changes color to show temperature
from SmartPlanet Video Hosted by SmartPlanet.com
Listen up, cafés. No one wants a cold cuppa, but a piping hot latte can cause some serious damage. SmartPlanet's Sumi Das tests out the SmartLid cup topper which turns a different color depending on how hot the beverage.
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This episode was published on January 25, 2012.
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