Different methods have evolved over centuries. Now an Italian tech company, “PuroSole” (PureSun), has developed an innovative installation that is able to roast coffee beans with renewable energy. The three co-founders of this project are two electronic engineers, Antonio Durbè and Daniele Tommei, as well as their longtime friend and coffee lover Luca Del Bufalo. They spent almost six years developing an efficient way to use solar power. “This project came to life because we are part of a robotic and IT company that had the curiosity to use heliostats (reflectors) that are devices used to direct the sun, solar power, toward a target,” says Durbè. “Then, we met a friend of ours, he is a coffee lover, and he suggested us to use this technology to build a coffee roasting solar plant.” PuroSole’s technology aims to drastically reduce the cost of large thermodynamic plants. To do so, they came …