 Doutor Coffee explored other ways to roast the coffee, but in a more effective way that retains the flavor in the coffee.Doutor Coffee utilizes the flame roasting approach which is laborious and time-extensive, but it allows richly flavored coffee beans.Since flame roasting is used more for small shops due to the fact that it can only roast 5 kg to 20 kg of beans at a time, Doutor Coffee is trying to create an industrialized flame roasting technique.