Coffee Joulies: A Shark Tank Journey of Innovation, Success, and Challenges
Imagine sipping your coffee at the perfect temperature for hours without worrying about it being too hot or cooling down too fast. That’s the problem Coffee Joulies set out to solve. Created by mechanical engineers and childhood friends David Petrillo and David Jackson, Coffee Joulies are stainless steel “beans” filled with a phase-change material designed … Read more