The most important step in processing coffee beans is roasting. Roasting of coffee beans takes place in the temperature range of 370 to 450 degrees for about twenty minutes. This makes them lighter by 18 to 23%. Their color changes from light green to medium/dark brown. Further, the beans split open and emit the rich aroma of coffee.
Coffee roasting is part art, part science that requires experience and the right equipment. This is where coffee roasters enter the scene.
Features Of Modern Home Coffee Roasters
While ovens have long been used for roasting coffee beans, modern coffee roasters make it possible to carry out the roasting process at home with nearly no effort at all. With a coffee roaster, you can roast up to half a pound of green coffee beans at a time. With their one-touch operation, all you have to do is place the green coffee beans into the roaster’s roasting drum. Close the lid and set the roasting level. Your work is done. The roaster will automatically complete the rest of the process. After the beans are roasted to your desired level, the coffee roaster will cool the beans, weed out the chaff (fine skin that detaches from the beans), and empty the beans into the bean cup. They're ready for use now.
The modern home coffee roasters can be adjusted to a range of roasting levels, at least fifteen different settings. The resulting coffee beans vary in appearance from a light cinnamon, to medium, or to a dark French roast. The rosters carry an adjustable ventilation system allowing it to vent externally or to a stove/ range hood exhaust.
Modern home coffee roasters are also easy to clean. Made of stainless steel, their drum, roasting bean cup, and chaff tray are safe to wash with dishwater.
Care In Using Coffee Roasters At Home
One important point of care in using a coffee roaster at home is to place it in a well-ventilated area or next to some external vent such as a counter top vent or a stove/range hood exhaust. This is because the roasting machine emits smoke while roasting the coffee beans. Never leave the room while roasting the coffee, even if the roaster is automatic. Also, do not clean your roaster too often. Finally, roasting on a porch or near a partially open window is fine but cold temperatures will badly affect the roast.