Daily Brewing | What Dripper and Pour-Over Parameters Should Be Used for Sidamo Guji Extraction?

With the rise of acidic coffees in recent years, FrontStreet Coffee would bet you have heard of Guanyin coffee. The name alone tells you it is something special - bright citrus and berry notes, a sweet-tart balance as lively as juice, and a truly memorable finish. A good cup is defined by balanced sweet, sour and bitter flavors plus a smooth texture, and the design of a pour-over cone exists to bring those qualities forward. Different cones, however, produce different styles in the cup. In this article we will first get to know this popular Guanyin coffee, then brew it in several types of cone to see what changes.

Why Is Guanyin Coffee So Famous?

In coffee shops, "Guanyin" refers to a natural-processed coffee from the Hambella region of Ethiopia's Guji Zone in Sidamo. Its full English name is "Ethiopia Guji Hambella Buku Abel." Broadly, it is a championship coffee from Ethiopia; more precisely, it is a specialty natural lot produced by the Buku Abel processing station in Hambella.

The striking nickname "Guanyin" was actually coined by domestic green bean traders after this coffee won the natural category of the TOH competition. It was chosen to suit a Chinese cultural context, meaning "first among all flowers." Later, with heavy promotion by merchants, it earned a reputation as "comparable to Geisha." A famous name, excellent quality, rich and juicy fruit flavors, an affordable price, high extraction tolerance (it is easy to brew) and an appealing name - together these advantages made Guanyin stand out among Ethiopian coffees and turned it into the first choice for many people trying single-origin coffee for the very first time.

Search for "Guanyin coffee" on a shopping platform and you will notice it often carries a number - Guanyin 5.0, Guanyin 7.0 and so on. Plenty of people wonder what that number actually means.

As FrontStreet Coffee mentioned, before this coffee was called "Guanyin" it had only one English name: "Hambella." Put simply, "Guanyin coffee" is a traditional natural-processed Grade 1 bean from the Hambella region, with the "Buku Abel" station providing the finer traceability detail; the station sits in Dimtu town.

After Guanyin became an overnight success, DW set up five independent green bean drying stations in Hambella Wamena Wereda to meet surging demand, all within the core Dimtu town area. Besides the original Buku Abel, four other small villages - Buku Saysay, Haro Soresa, Tirtiro Goye and Seke Bokosa - also joined in producing natural-processed beans. It is said that at its peak the annual output of DW's "Guanyin" reached tens of millions of tons.

Beginning with the 2018 crop season, Guanyin (natural G1 beans) from the same growing region and the same processing station already showed slight flavor variations. At the time, FrontStreet Coffee found through cupping that while the 2018 and 2019 Guanyin resembled the 2017 Guanyin in flavor, they did not match the "first-generation Guanyin" in body, aftertaste and other mouthfeel aspects.

So, to keep selling this natural coffee from Hambella while distinguishing it from the original, domestic green bean trading companies adopted an X.0 suffix for each year's batch, counting forward from 2017. The 2018 batch became "Guanyin 2.0," the 2019 production "Guanyin 3.0 and 3.1," and so on. Last year's release was "Guanyin 7.0," which makes this year's latest version "Guanyin 8.0." The suffix lets you tell at a glance which year's crop your Guanyin belongs to.

Pour-Over Coffee: Which Filter Cone Should You Choose?

The filter cone is arguably the hallmark of pour-over brewing. A practical cone makes the results from every bag of beans more consistent. Price differences between cones generally reflect design patents, materials and appearance. If you are after value, FrontStreet Coffee recommends the resin version of the V60 cone and the wave filter cone. For V60 brewing we use the resin size 01: the resin body limits heat loss, and size 01 suits single-serve brewing.

Because the V60 drains quickly, FrontStreet Coffee uses a slightly finer grind to increase the contact area between grounds and water, extracting more thoroughly and developing fuller flavor. But the finer you grind, the more readily the grounds settle at the bottom of the filter paper, raising flow resistance, slowing the flow, stretching extraction time and risking over-extraction with unpleasant woody, muddy notes. That is why pouring technique matters too, so the bed does not clog late in the brew.

To extract flavor while keeping the brew stable, FrontStreet Coffee suggests expanding your circular pour steadily from the center outward after the bloom. As the water level rises, let the stream wash through the grounds so extraction stays even. Here we use our own roasted Guanyin 8.0 as the example: 15g of coffee, a 1:15 coffee-to-water ratio and 225g of water in total, yielding roughly 200g of liquid after filtering, brewed with the three-stage method.

Filter cone: V60
Water temperature: 91°C
Coffee amount: 15g
Coffee-to-water ratio: 1:15
Grind size: 80% pass-through on a 20-mesh standard sieve

First stage: pour 30g of water and bloom for 30 seconds, starting the timer as you pour. Use a small stream and circle outward from the center so the whole coffee bed is moistened.

After 30 seconds, begin the second stage with a slightly larger stream, steadily adding 95g of water. The goal is to lift the entire coffee bed, which calls for a vertical, even stream. The scale should now read 125g, with the pour finishing at around 55 seconds.

When the water level drops to about halfway, switch to a small stream and small circles for the final 100g. Try not to pour too wide, as this scatters the grounds and causes under-extraction. Finish at 225g of total water, with a completion time of around 2 minutes. Remove the cone, swirl the liquid in the server to even it out, and it is ready to taste.

FrontStreet Coffee Recommendation

Guanyin earned its fame partly on the claim that it is "comparable to Geisha," so the most natural next step for anyone who loves this juicy, floral Ethiopian natural is to taste the real thing. FrontStreet Coffee's Panama Boquete Geisha is the ideal entry point: an accessible Geisha that delivers the classic Panama profile of orange-blossom honey, oolong tea and fine fruit acidity with clearly defined layers. For a step up, the Esmeralda Red Label Geisha from the renowned Hacienda La Esmeralda - grown between 1,600 and 1,800 meters and cupped at over 90 points - offers even greater depth and intensity. Brew either one as a pour-over and you will see exactly where Guanyin's benchmark came from.