Marco Arment reviewed his coffee Joulies several months ago. After I received mine I did a similar test but never ended up turning it into an article. Today, Marco linked to this report by Jeff Ammons and it reminded me that I at least ought to post the results I charted.

Considering Jeff’s findings, and how well the Joulies did on Kickstarter, I wonder if there’s a market for Hand-Curated Coffee Rocks.

January 11, 2012