11

Wikipedia lists coffea arabica as a plant species with a high theobromine content, but does not include coffee on the list of significant dietary sources. I searched around, and it looks like the theobromine content in coffee is essentially zero. How can this be? Is all the theobromine contained in parts of the plant other than the beans? Maybe it is removed by the extraction process?

13

According to the Dr. Duke's Phytochemical and Ethnobotanical Databases, Coffee Arabica has one of the largest amount of theobromine in its seed (20 ppm). However, this amount is just a bit more than 1/2500 th of the amount what Cocoa includes (48 223 ppm). So... Coffee is not really considered a theobromine source, but Cocoa is.

5

I suspect the reason is that theobromine is much less soluble in water than caffeine. A forum post is here.

  • Caffeine – 21600mg/L water
  • Theobromine – 330mg/L water

So potentially the grounds have theobromine but it doesn't dissolve during brewing.

  • 5
    Good idea, but tea is a significant source of theobromine despite being brewed in water. – Don Reba Jun 6 '16 at 15:43

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.