Coffee cup lid changes color to show temperature

Coffee cup lid changes color to show temperature 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.

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.

This post was originally published on Smartplanet.com