Roasting Plant is a coffee shop that bills itself as a tech company. And if you want a cup, all you have to do is head to the airport. The artisan coffee shop, which differentiates itself by roasting the beans in front of customers, celebrated its grand opening at the Denver International Airport Tuesday, continuing the push for high-quality dining experiences at the airport. “The just-roasted coffee experience is simply much better in terms of taste,” Roasting Plant co-founder Thomas Hartocollis said.