By Irene Middleman Thomas
Published in Costco Connection Magazine
August 2012, p.29-30
DAVID HARTKOP, 30, a special-effects cinematographer with previous jobs in electronics, welding and metalwork, and his brother Mike, 33, a coffee-loving businessman, might not have seemed likely partners in a risky, first-of-its-kind entrepreneurial endeavor. But in 2004, after attending college, these Costco members decided to join forces to create a solar-heated coffee roaster.