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Smart Lids Warn You When Your Coffee’s Too Hot

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Written by Hazel Chua | September 13, 2013

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]