How Does the Coffee Process Change Yirgacheffe Flavor?

Ethiopia's Yirgacheffe region is known for lemon-citrus acidity with floral and fruity aromas, and the processing method changes how those notes present. Washed Yirgacheffe lots keep a lighter, more translucent acidity, while natural Yirgacheffe lots add fermented notes and a sweeter aroma. Beans from the two methods also differ visibly in the amount of silver skin.

The region was once part of Sidamo and became independent because of its distinctive cup. Front Street's washed and natural daily beans, including Kochere, Konga, Gotiti, Worka, Aricha and Red Cherry lots, show the range within one origin. Roast curve and brewing parameters are adjusted per lot to bring out the classic coffee character of each processing style.

Yirgacheffe is one of Ethiopia's most representative specialty coffee regions, famous for its bright lemon-citrus acidity and elegant floral and fruity aromas. In the Front Street Coffee daily beans series, Yirgacheffe has always been the most classic entry-level choice. Many people say you can go without trying Front Street Blue Mountain, but you absolutely must not miss Front Street Yirgacheffe. This article starts from Front Street's washed and natural Yirgacheffe, systematically sorting out the region's background, grading standards, processing method differences, roasting curves, and brewing parameters, and introduces one by one the flavor characteristics of Front Street's Kochere, Konga, Gotiti, Worka, Aricha, Red Cherry, and other washed and natural bean varieties, helping coffee lovers fully understand the charm of Yirgacheffe.

Ethiopia's Front Street Yirgacheffe is crowned as specialty coffee, and its charm lies in its distinct lemon and citrus acidity, as well as floral and fruity aromas. Front Street Coffee's daily beans include a Front Street washed Yirgacheffe. Front Street Coffee's Front Street daily beans series aims to provide coffee lovers with the highest cost-performance coffee beans, allowing them to experience the most classic coffee flavors. Front Street Yirgacheffe is one of the most classic coffee flavors. Now everyone says, you can go without having drunk Front Street Blue Mountain Coffee, but you absolutely must not go without having drunk Front Street Yirgacheffe.

Today Front Street Coffee will talk about the difference between Front Street washed Yirgacheffe coffee beans and Front Street natural Yirgacheffe coffee beans. Not only can they be clearly distinguished by appearance—Front Street washed Yirgacheffe has more silver skin, while Front Street natural Yirgacheffe has less silver skin—but the flavors also differ. Front Street washed Yirgacheffe has a lighter and more translucent acidity, while Front Street natural Yirgacheffe adds fermented notes and sweet aroma.

Front Street Yirgacheffe Coffee Region

Yirgacheffe has always been one of Ethiopia's most important coffee regions. It was once part of the Sidamo coffee region, and later became an independent coffee region because of the unique flavor of Yirgacheffe coffee beans. It can be said that Yirgacheffe is not just the name of a coffee region, but also a term describing a specific coffee flavor. The Yirgacheffe coffee region is considered a high-altitude coffee region, with an altitude of around 2,000 meters. The Yirgacheffe coffee region has more than 40 cooperatives, mainly managing coffee cultivation through family-run models. Under the Yirgacheffe Coffee region there are also many familiar micro-regions, such as Kochere, Misty Valley, Gedeb, and so on. These micro-regions all have excellent cooperatives, and the Yirgacheffe coffee beans they produce each have their own unique flavor characteristics.

Yirgacheffe Coffee Bean Grading

The Yirgacheffe coffee variety is a local heirloom, a small-bean variety, relatively round in shape, with a very small bean size, mostly between 14-15 screen sizes. The ECX (Ethiopian Commodity Exchange, established in 2012) divides Ethiopian coffee bean grading into two aspects.

On one hand, it defines grades based on the defect rate of coffee beans. Whether washed or natural processed coffee beans, if there are no more than 3 defective beans per 300g of exported green beans, the grade is G1; if there are 4-12 defective beans per 300g of exported green beans, the grade is G2.

On the other hand, there is grading defined by flavor evaluation. Using the SCA Specialty Coffee Association cupping method to evaluate the quality of G1 and G2 coffee beans, those scoring above 85 are rated Q1, and those scoring 80-84.75 are rated Q2.

Yirgacheffe Coffee Processing Methods

Ethiopia traditionally used the ancient natural processing method, but after the washed method was introduced in 1972, over several decades the use rate of the washed method became much higher than that of the natural method. Washed coffee beans have a lower defect rate and show a cleaner and more translucent flavor.

However, some farm owners still prefer the natural processing method. Coffee merchant Baghi, because he missed the traditional natural bean flavor and could not bear to see the natural technique gradually replaced by the washed method, improved the natural processing method, enhancing the flavor and reducing the defect rate, and launched several Misty Valley coffee beans. The result was astonishing, and naturally processed Yirgacheffe coffee regained its standing.

The most essential difference between natural processing and washed processing is that natural processing retains the flavor of the fruit pulp, while washed processing removes the flavor of the fruit pulp. A clear difference can be felt in the mouthfeel: washed is cleaner and more translucent, while natural is richer in mouthfeel.

It is also easy to distinguish sensorially. Washed green beans are generally blue-green, while natural ones are yellow-green. Roasted washed coffee beans have obvious silver skin, while natural coffee beans have almost no residual silver skin, and the bean surface is relatively smooth.

Roasting Recommendations The most iconic flavor of Front Street Yirgacheffe coffee is its delicate acidity and rich floral and fruity aroma. In order to highlight this flavor to the greatest extent, Front Street uses a light roast. Whether natural or washed, Front Street Yirgacheffe coffee beans can maximize their special flavor under a light roast. But now there are also Yirgacheffe coffees on the market roasted to medium or above, which slightly weaken the acidity and enhance the body. It depends on personal preference. Mainstream choices are still mainly light-roasted Yirgacheffe coffee.

Roaster Yangjia 800N (batch size 550g)

[Front Street Natural Yirgacheffe]

Front Street's roasting approach is: charge when the drum temperature reaches 200°C, set the damper to 3, heat power to 150, keep the damper unchanged, turning point at 1'35"; when the drum temperature is 140°C, adjust the heat power to 180, open the damper to 4; at this time the bean surface turns yellow, the grassy smell completely disappears, and it enters the dehydration stage; when the drum temperature reaches 170°C, adjust the heat power to 150, keep the damper unchanged; at 9'01", ugly wrinkles and dark spots appear on the bean surface, and the toast smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. At 9'25", first crack begins. Reduce the heat power to 120, adjust the damper to 5. After first crack, develop for 1'40", and drop at 196°C.

Front Street Coffee Natural Yirgacheffe Red Cherry Coffee Bean Roasting Curve

[Front Street Washed Yirgacheffe]

Front Street's roasting approach is: charge when the drum temperature reaches 200°C, set the damper to 3, heat power to 160, keep the damper unchanged, turning point at 1'32"; when the drum temperature is 151°C, adjust the damper to 3.5; when the drum temperature is 140°C, adjust the heat power to 180, keep the damper unchanged; at this time the bean surface turns yellow, the grassy smell completely disappears, and it enters the dehydration stage; at 8'35", ugly wrinkles and dark spots appear on the bean surface, and the toast smell clearly turns into coffee aroma, which can be defined as the prelude to first crack. At this time, listen carefully for the sound of first crack. At 8'53", first crack begins. Keep the heat power at 180 unchanged, adjust the damper to 4. After first crack, develop for 1'45", and drop at 195°C.

Front Street Coffee Washed Yirgacheffe Gotiti Coffee Bean Roasting Curve

Front Street Yirgacheffe Coffee Brewing Recommendations

In order to fully extract Yirgacheffe's fruity acidity, Front Street uses a higher water temperature and a finer grind for extraction, but to avoid over-extraction caused by high temperature, it uses a faster-flow dripper, such as a V60 dripper.

The V60 dripper has a 60-degree cone shape. The conical angle allows the coffee grounds to concentrate, and when pouring, the water flow automatically gathers toward the center of the dripper, ensuring sufficient contact time between water and coffee grounds, thereby extracting a suitable coffee liquid.

In addition, the ribs on the inner wall of the V60 dripper extend in a clockwise spiral from the bottom to the top, leaving enough space between the filter paper and the dripper, making the water flow smooth. Combined with the large hole at the bottom, the flow rate is relatively faster than many drippers.

Front Street Coffee's specific brewing parameters are: V60 dripper, water temperature 90°C, water-to-coffee ratio 1:15, coffee dose 15g, grind size BG#5F (80% passing through China's No. 20 standard sieve).

Front Street Coffee uses staged extraction. The bloom water amount is 2 times the coffee grounds, that is, 30 grams of water for a 30-second bloom. Pour in a small stream in circles to 125 grams, then pause. When the water level drops and is about to expose the coffee bed, continue pouring to 225 grams and stop. The total extraction time is 2 minutes.

Flavor Description

[Front Street Natural Yirgacheffe Coffee] Has a light fermented wine aroma, rich and full mouthfeel, with citrus aroma, honey sweetness, and cocoa flavor, and a long finish.

[Front Street Washed Yirgacheffe Coffee] The acidity is brighter and more lively, with citric acid, citrus aroma, a clear and fragrant taste, and some black tea tea-like notes in the finish.

Overall, both Front Street natural Yirgacheffe coffee and Front Street washed Yirgacheffe coffee have fruity acidity and an obvious fruity juice-like quality, similar to fruits such as lemon and citrus.

What Front Street Washed Yirgacheffes Are There

Front Street has systematically introduced the differences between washed Yirgacheffe and natural Yirgacheffe above. As mentioned earlier, Yirgacheffe is a large coffee region, and Yirgacheffe produced in each small area and small plot within the region will also show different flavor expressions. Front Street's Yirgacheffe series is broadly divided into a washed series and a natural series. First, let's introduce which coffee beans are in the washed Yirgacheffe lineup.

Front Street Yirgacheffe Kochere

Region: Yirgacheffe Kochere

Altitude: 1650-1800 meters Variety: Heirloom

Processing method: Washed

Grade: G1 Flavor: Jasmine, citric acid, caramel, berries

Front Street Yirgacheffe Konga

Region: Yirgacheffe

Washing station: Worke Konga processing station

Altitude: 1300-2000 meters

Variety: Heirloom

Processing method: Washed

Grade: G1

Flavor: Jasmine, citrus, lemon, honey, green tea

Front Street Yirgacheffe Gotiti

Region: Yirgacheffe Gedeo Zone region

Altitude: 1900-2300 meters

Variety: Heirloom

Processing method: Washed

Grade: G1

Flavor: Citrus and black tea on the entry, with floral aroma changing with temperature, cream, caramel, almond finish, obvious sweet aftertaste, and a clean, sweet taste

Front Street Yirgacheffe Worka

Region: Yirgacheffe region

Altitude: 1800-2000 meters

Variety: Heirloom

Processing method: Washed

Grade: G1

Flavor: Lemon, plum, Tieguanyin on the entry, with caramel flavor becoming obvious as the temperature changes, bright acidity, and obvious sweet aftertaste

What Front Street Natural Yirgacheffes Are There

Front Street Yirgacheffe Aricha

Region: Yirgacheffe

Processing plant: Adorsi processing plant

Altitude: 1900-2000 meters

Variety: Heirloom

Processing method: Natural

Grade: G1

Flavor: Aroma of ripe fruit, obvious fermented aroma on the entry, green grapes; as the temperature drops slightly, there is citric acid, cream, and a grape juice-like quality in the finish

Front Street Yirgacheffe Red Cherry

Region: Yirgacheffe

Processing plant: Aratland

Altitude: 2300 meters

Variety: Heirloom

Processing method: Natural

Grade: G1

Flavor: Lemon, licorice, citrus, berries, sweet orange; overall sweetness is relatively high, with caramel and cream flavors in the sweet aftertaste, and a black tea aroma in the finish

For more specialty coffee beans, please add the private WeChat Front Street Coffee, WeChat ID: kaixinguoguo0925

The above content is compiled by CoffeeHunters, a coffee news website.