Differences Between Sun-Dried and Washed Processing of Yirgacheffe Coffee Beans | Pour-Over Brewing Methods and Flavor Profiles

FrontStreet Coffee - Yirgacheffe Processing Methods and Brewing

Washed Processing

The washed method produces excellent body, high aromatics, and vibrant acidity. Washed Yirgacheffe is graded Gr-1 and Gr-2, with the smaller number indicating the higher grade. G1 Yirgacheffe has a distinctive style: citrus and floral notes blend seamlessly into the cup, a flavor almost impossible to resist.

Natural (Dry) Processing

In the natural process, whole coffee cherries go straight from harvest onto the drying beds without any preliminary handling. It is the oldest processing method in existence, typically requiring about four weeks of drying, and it must be executed with great precision so the coffee keeps all of its flavor. Natural-processed beans show complete, naturally rounded body, gentle aromatics, and more lingering mucilage sweetness.

Natural lots are graded Gr-1, Gr-3, Gr-4, and Gr-5. As with washed, top-scoring G1 natural Yirgacheffe carries a rich fruit aroma. Opening a bag of freshly roasted G1 natural Yirgacheffe can completely change how you think about coffee — only after tasting a top-grade natural Yirgacheffe will you truly believe that coffee is a fruit.

Physical Differences

Generally speaking, washed green beans are greenish-blue. After roasting, washed Yirgacheffe retains more silverskin and shows a wrinkled surface from the water processing. Natural-processed green beans are yellowish-green, and natural Yirgacheffe has less silverskin with a smoother appearance.

Recommended Brewing Method

Method: Pour-over
Filter: V60
Water Temperature: 92°C
Coffee Amount: 15 grams
Coffee-to-Water Ratio: 1:15
Grind Size: Medium-fine (BG 6s: 58% pass-through rate on the China standard #20 sieve)

Brewing Technique

Technique: Multi-stage pour

Stage one: pour 30g of water to bloom and wait 30 seconds. Stage two: with a small stream, pour in circles up to 120g, then stop. Once the water level has dropped and the coffee bed is about to be exposed, continue to stage three, pouring up to 225g. When the bed is about to surface again, lift off the filter cup. (Timing starts at the bloom.) Total extraction time: 2'00".

Knowledge Point

Ethiopia holds a pioneering place in the coffee world — it is the birthplace of Arabica and currently Africa's largest Arabica producer. Ethiopia's Kaffa Forest is often called the "gene bank of coffee."

FrontStreet Coffee Recommendation

To taste the two processing styles side by side, start with FrontStreet Coffee's Washed Yirgacheffe. Because the fruit is pulped before drying, the cup is exceptionally clean and transparent: crisp jasmine florals, bright citrus acidity, and a light, elegant, tea-like body often compared to a refreshing lemon tea.

For the natural side, the FrontStreet Yirgacheffe Red Cherry Project Natural is the one to try. Damaged and moldy cherries are removed first, then the fruit dries in the sun for two full weeks until moisture falls to 12%, with density and color checks and hand-sorting at every stage. The result is immaculate, intensely fruity coffee with flavors of peach, cocoa, honey, and lemon.