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Smart Lid: Heat Sensitive Coffee Lid

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I love coffee but it is always nice to know how hot it is before I drink the whole thing. The Smart Lid can be quite helpful if you don’t want to take a sip to realize how hot your coffee is. It is heat sensitive and changes color when your drink is hot. Its color gets darker as your drink cools. You are not going to burn yourself with hot coffee when you have these color changing disposable beverage lids.

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