"The Mystery of Kona Coffee Rings!" by Karen Paterson

We noticed at Hula Daddy Kona Coffee that coffee cups leave a ring on the counter while other beverages do not. We never knew why that occurred. Our question has now been answered by an elite group of scientists from the University of Pennsylvania, who were taking a break from predicting TEOTW.*

These boffins wanted to know why coffee always creates distinctive rings when it spills. After much study – hopefully not at taxpayer expense – they concluded that the particles in coffee are spheroid while other beverages have elongated particles. Spheroid particles move to the edge of a liquid which causes a ring to form. Elongated particles spread out uniformly which just causes a stain.

Now you know!

If you want to know more, here is their research paper: http://goo.gl/oRW70

*The end of the world

Karen Jue Paterson is the owner of Hula Daddy Kona Coffee, a 33 acre coffee farm in Kona, Hawaii. She is a member of the Hawaii Coffee Association, the Kona Coffee Council, the Kona Coffee Farmers Association, the Holualoa Village Association and the Specialty Coffee Association of America. She is also the author of a number of articles on Kona Coffee including: Kona Coffee Farmers at a Crossroad https://www.huladaddy.com/?p=696 ;How Typica is Your Kona Coffee? https://www.huladaddy.com/?p=710 ; Are Roasters Eroding the Kona Coffee Brand?https://www.huladaddy.com/?p=952; Coffee Cupping Competitions – Real or Random Chance? https://www.huladaddy.com/?p=1670 ; Seven Easy Steps to Become a Gourmet Coffee Taster https://www.huladaddy.com/?p=1785 ; How to Brew Coffee Using a Pour Over Filter https://www.huladaddy.com/?p=1754; Before You Buy an Automatic Single Serve Coffee Brewer https://www.huladaddy.com/?p=1899; Siphon Coffee Brewers Suck! https://www.huladaddy.com/?p=2026 You can email her at huladaddycoffee@gmail.com #huladaddy #konacoffee