Roasting Roasting is the most important step in coffee production. The final taste of the coffee depends on the roasting method and conditions used, to begin with, and how the beans are weighed. 1,000 grams using a temperature of 170-229 degrees Celsius and randomly inspect coffee beans every half 0.5-1 minute to observe for cracks in the coffee beans. The coffee beans will swell and become larger, resulting in less density, lighter weight and gradually losing color. It turns yellow until it turns brown and darkens. As the results from Table 1 During roasting from Table 2 From the results, roasted coffee beans began to crack at 197. degrees (9.40 minutes) ends at 229 degrees (12 minutes) by roasting Moisture is removed from the seeds. Coffee and a volatile substance called caffeine come out on the surface of the seeds. It is a water-soluble substance. If this substance is missing, there will be no coffee flavor. But only brown water contains caffeine. This substance makes up only 2 percent of the weight of coffee beans. Light roast Light roasting gives the coffee a light brown color without any oiliness on the surface of the coffee beans, resulting in less moisture than roasting. Roasting this way will reduce the odor. and makes it have a light taste by causing the weight of the product to not decrease as much as brewing, resulting in heavy coffee And the color that came out was not as good as it should be. From Table 3, during light roasting, starting at a temperature of 170 degrees, 1,000 grams of coffee beans, it was observed that the cracking of coffee beans started at 196.6. degrees (10.44 minutes) and ends at 199 degrees (11.34 minutes). Notice that the raw coffee used for roasting is Arabica and Robusta coffee.