Coffee has a bitter taste but the aroma is passionate and attractive, making people ecstatic, each coffee bean when reaching a different roast level will bring different flavors and aromas, so why is there a difference? What is the difference, what are the roasting levels and how to distinguish them, let’s find out through the information below.
Changes in coffee during roasting
Each coffee bean during the roasting process, exposed to high temperatures, will gradually change in color and have a certain swelling and change in both volume and flavor. Each coffee variety will have different characteristics, so the roasting process will also bring its own changes, but the most recognizable feature to describe the coffee roasting process is the color of the beans.
When exposed to high temperature, the natural oils in coffee secreted will change color on the surface of coffee beans, gradually turning from green to yellow and brown, finally black and charred. When roasting, coffee will also emit small explosions, which can be based on this feature to see what stage the coffee has been roasted to.
Coffee roasting levels
1. Cinnamon
Cinnamon is the first level of coffee roasting, this is a very light roasting, the coffee is taken out of the roaster before the first explosion, coffee of this level often has a sour taste, with a strong resin smell. Plant and fresh.
2. Light Roast – Light Roast
Light roast is stage 1 in the roasting process, roasted coffee after emitting the first bang in the temperature range from 195 to 205 degrees Celsius will be removed immediately. At this level of roasting, the coffee beans give the aroma of fruits and beans, still have a lot of sourness but a little sweetness and less bitterness, this level is often used in countries in the Northern region. Europe.
3. Medium Roast
Medium roast is the second stage, between two bursts of coffee, the roast will be removed before the second explosion, at this time the coffee beans have been exposed to high temperatures for a certain time. At this time, the taste is quite pleasant, with a moderate balance of sour, sweet, and bitter flavors…
4. Medium – Dark Roast – Medium dark roast (American Roast, City Roast)
Coffee at this level will be taken out as soon as the second bang is emitted, the coffee beans at this stage usually have a fairly high consistency, bring with them a fragrant but bitter flavor, thick body, low acidity. , less sweet and slightly spicy.
5. Dark Roast – Dark Roast
At stage 4 is dark roast coffee, coffee after the second explosion about 30-60 seconds will be taken out of the roaster, at this roasting level, the coffee will have a high bitterness, accompanied by that’s the smoky taste that appears when brewing, the sweetness and sourness at this roast level has completely disappeared. Dark Roast coffee has a rather bold taste, suitable for those who love the bitter taste and bold aroma of black coffee.
