How do you pull a soe espresso from Kenyan beans at home?

Yes, a single-origin bean can become a soe espresso, but it must be chosen and dialed in carefully. Single-origin espresso has tighter demands on bean selection, roast curve and extraction than a blend, and its weaknesses are magnified under pressure along with its strengths.

Not every single origin works. Kenya Cherry Tomato beans are one option, and a full recipe sets dose, yield, ratio and time so the cup shows clear berry character. Many shops still skip soe coffee because blends give customers a more consistent flavor, and roast level and grind size sway the result heavily.

In recent years, SOE espresso has become increasingly common in specialty coffee shops, but many people mistakenly believe that simply putting single-origin beans into an espresso machine will produce a delicious SOE. In fact, single-origin espresso has stricter requirements for bean selection, roasting curves, and extraction parameters. This article draws on the store practices of Front Street Coffee to explain the essential difference between SOE and blended espresso, clarify why not all single-origin beans are suitable for SOE, and use the Kenya Cherry Tomato coffee beans as an example to provide a complete extraction plan including dose, yield, ratio, and time, helping coffee enthusiasts make a cup of single-origin espresso with clear flavor at home.

Nowadays, many specialty coffee shops are promoting SOE espresso, and customers often come to Front Street Coffee to ask whether soe coffee is available~ Currently, the espresso served at Front Street Coffee stores uses espresso beans blended from Front Street Sun-Dried Red Cherry and Honduras Sherry coffee beans, and soe espresso has not yet been launched~ Both are espresso, so why distinguish blended espresso from soe espresso? Below, Front Street will talk about matters related to soe espresso.

What is SOE? SOE stands for Single Origin Espresso, called single-origin espresso in Chinese. Although it represents single-origin espresso, it is not necessarily equal to specialty coffee. If single-origin coffee beans with easily recognizable flavors are selected as SOE, it can produce espresso with a unique and typical flavor.

For example, Front Street Yirgacheffe has citrus notes, and Front Street Kenya shows berry aromas. In addition, the high-pressure environment of an espresso machine further amplifies the flavors, so the flavor expression in espresso form is often more striking than pour-over. However, single origin also means that weaknesses are magnified as well. Variables such as roast level and grind size directly affect the final flavor. This is exactly why Front Street Coffee stores do not offer soe: Front Street hopes every customer who visits the store can drink espresso beverages with stable and distinctive flavor.

Speaking of the rise of this trend, Chen Chih-Huang, champion of the 2013 Nordic Cup Coffee Roasting Competition and founder of Fika Fika Cafe, once offered an analogy: the development trajectory of coffee is quite similar to that of whiskey; early consumers recognized only brands and drank blended whiskey, while in the past decade single malt whiskey from different regions has gradually become popular, and SOE follows exactly the same logic.

Is SOE equal to making espresso with pour-over single-origin beans? By definition, making espresso with pour-over single-origin coffee beans does indeed fall within the scope of SOE "single-origin espresso," but in actual operation it is far from as simple as imagined.

Compared with blends, espresso made from single-origin coffee beans more easily captures clear flavors or regional characteristics. Because blended coffee beans mix beans from multiple regions, their greatest strength lies in balance and stability, but too many combinations also make regional flavors difficult to identify.

Therefore, compared with traditional blended espresso, SOE should be positioned as an espresso that emphasizes flavor recognizability more. This characteristic determines that when selecting beans for SOE, coffee beans with high flavor recognizability and sufficient intensity should be chosen as much as possible. If beans with relatively weak flavor intensity are selected for SOE, the extracted espresso will appear thin and weak. Imagine a cup of SOE that has neither distinctive features nor the balance and stability of blended beans—it really is not worth the loss.

Second, the roast level should be neither too dark nor too light. A darker roast greatly diminishes regional flavors, while a lighter roast causes the espresso machine to amplify the acidity brought by light roasting under high pressure, easily making the espresso sharply acidic and hard to tolerate. At the same time, a lighter roast also makes the coffee beans harder in texture, making under-extraction more likely. Both diminishing regional flavors and causing imbalance through sharp acidity go against the original intention of highlighting single-origin flavor, so the roasting curve for producing SOE from the same bean and the curve for producing pour-over coffee should rightly be two different roasting curves.

What should be noted when making SOE?

Front Street has found that many people think SOE is simply applying single-origin beans directly to espresso machine extraction, thereby making a single-origin espresso series, until they take home beans with various floral and fruity flavors, try them with an espresso machine, and discover something is off. Here we use Front Street Kenya Cherry Tomato as a reference to demonstrate how to make a standard soe coffee, so that everyone can experience the charm of fruity acidity at home.

Front Street Coffee: Kenya Cherry Tomato Coffee Beans

Region: Thika region, Kenya

Altitude: 1550-1750 meters

Variety: SL28, SL34

Grade: AA

Processing method: washed

Flavor: smoked plum, snow pear, yellow sugar, cherry tomato, plum

The coffee machine at Front Street stores is the commercial single-group "Lelit Bianca," which can adjust extraction by changing pressure, with a maximum pressure of 11 bar. A home espresso machine only needs to reach 9 bar of pressure to satisfy the functions of extraction and milk frothing, paired with an espresso grinder.

Sharing the extraction parameters for SOE coffee

Coffee beans: Front Street Kenya · Cherry Tomato

Coffee dose: 20g

Coffee yield: 40g

Dose-to-yield ratio: 1:2

Extraction time: 26~33 seconds

Grind setting: Galileo 2.0

Front Street uses the capacity of a double basket, with a dose of about 18~20 grams, and Front Street uses 20 grams of coffee grounds when serving.

Usually the ratio of coffee grounds to coffee liquid is 1:1.5~1:2.5. Front Street's extraction ratio is 1:2, that is, 20 grams of coffee grounds extract 40 grams of coffee liquid. Time is related to the flow rate of the coffee grounds. Generally, a single extraction duration is controlled at 20~35 seconds, because within 20 seconds the coffee usually tastes thin, while over 35 seconds it is prone to over-extraction and a burnt bitter taste. Front Street's espresso is mostly in the range of 28~30 seconds.

Front Street first wipes the basket dry, turns on the grinder, grinds the amount for a double dose of coffee grounds, places it on an electronic scale to adjust up or down until it reaches 20 grams. Then use a tool to distribute the grounds evenly, tamp the coffee puck firmly, ensuring more stable coffee extraction. Then turn on the extraction switch to release water, wetting the brew head while washing away the coffee grounds stuck on it, gently lock the portafilter onto the brew head, and begin extraction. When the electronic scale shows that 40 grams of coffee liquid has been extracted, at about 28~33 seconds, the extraction switch can be turned off, and a cup of SOE espresso is complete. We can add an appropriate proportion of ice water or 80°C hot water according to personal preference to make a cup of Yirgacheffe SOE Americano.

When making an SOE hot latte, Front Street uses a 1:6 ratio, adding 40 grams of espresso to a preheated coffee cup, then using the espresso machine steam to froth 240g of milk. The milk temperature is best controlled between 50-65°C to form dense milk foam with moderate thickness, then blend it evenly with the coffee liquid. The Yirgacheffe SOE latte made this way tastes like eating a lemon-flavored cookie on the first sip, rich and smooth, and after drinking it the whole body instantly feels warm.

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