How many times have you burnt your tongue because you sipped too-hot coffee or cocoa from that takeout cup? Aiming to drive that number down are the folks behind the SmartLid.
It’s a disposable beverage lid that changes color, depending on the temperature of the cup’s contents. Just keep a stack of these in your car or at your office, and replace the lid on your cup with this one so you’ll know when it’s safe to take a sip. It’s originally maroon in color, but it changes to bright red when the contents in your cup are still piping hot at the 120°F (48°C) range. It’ll slowly change back to its original color as your drink cools down.
SmartLids available in packs of 40 for $30 (USD). They also offer packs of 1,000 lids that people running cafes or restaurants might want to pick up.
[via The Awesomer]