D+Caf Detects If You're Drinking Caffeinated Coffee Instead of Decaf

Sometimes you want to know if you're being duped with a cup of decaf over real coffee, and sometimes you just want to also look in the face of the person for 10+ years who tells you it's leaded coffee, and say, "Busted". D+caf test strips are strips of paper coated with antibodies that tell if you a beverage is properly decaffeinated, turning up blue lines if it's got more than 20mg of caffeine per 6oz serving. The strips are 98 percent accurate for detecting caffeine, plus you have to use them before you add anything else to your coffee tea, like milk or sugar.

Via Gizmodo at Discover Testing

Read More in: Coffee Gadgets & Accessories

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