Dipstick Caffeine Test for Coffee
STEVE INSKEEP, host:
Good morning. I'm Steve Inskeep.
A St. Louis chemist is one of many people who ask for decaf and then wonder if it's really decaf. Jack Ladenson says he's getting more sensitive to caffeine, so he wants to test what a restaurant pours him. His research team patented a dipstick test. Stick it in your drink and it changes color depending on the amount of caffeine. He would like to market this, but so far no company is awake to the possibilities. Maybe a cup of coffee would help.
NPR transcripts are created on a rush deadline by Verb8tm, Inc., an NPR contractor, and produced using a proprietary transcription process developed with NPR. This text may not be in its final form and may be updated or revised in the future. Accuracy and availability may vary. The authoritative record of NPR’s programming is the audio record.