German manual charcoal roaster, made in 1900, has a round shape with two handles on both sides, in the middle is a black 25-centimeter high cast iron bar to be a pillar for the three blades inside the oven. It has a delicate handle, and a semicircular lid on top. It can hold about 500 gram of green coffee and takes about 20 minutes for a batch of roasting. When roasting, it needs to stir evenly. Coffee is everyone's favorite drink. If those who are connoisseurs of processing and brewing coffee, they will actively watch over for the ripen evenness of the coffee, which means actively taking care of the cockroach brown coffee getting enough standard for preparation. Roasting determines the aroma of coffee beans. The taste of roasted coffee beans on charcoal is quite different from other methods used in the world. This process slowly makes the flavor become denser and sweeter. High quality coffee beans are sourced directly from the best farmers in the world. The coffee is slowly roasted over charcoal to evenly distribute the flavor and color. The traditional method has proven to be the best method.