Patrik Hellstrand, CEO of Oath Pizza, discusses the company's rise to popularity in the Boston area, and how the company's ethically-sourced ingredients have led to its popularity in today's social and health-conscious environment. Hellstrand notes that sustainability is the core to what the company does. Oath is the first pizza company to be certified humane, and uses all locally and ethically-sourced ingredients. He says the company's fresh breads are seared in avocado oil, which makes the pizza "guilt-free," and different from its competitors. The company will soon launch a location in Washington D.C., and another in New York City in 2018.