Introduction:An in-depth exploration of the growing background, variety characteristics, and unique flavors of the Diamond Mountain Catuai coffee from Panama’s Finca Esmeralda, along with expert pour over parameters and steps. From its volcanic soil environment at 1400–1600 meters above sea level to the citrus acidity and rich body of the Catuai variety, discover how this specialty coffee showcases a complex flavor profile through meticulous processing.
Located in the Boquete region of southwestern Panama, Finca Esmeralda (La Esmeralda) was originally a diversified farm primarily focused on dairy farming and citrus cultivation. However, by the end of the 20th century, under the management of the Peterson family, this estate gained prominence in the coffee world after accidentally discovering the highly promising GEISHA (Geisha) variety. Starting in 2004, this variety won the Best of Panama (BOP) international competition for multiple consecutive years, not only solidifying the estate’s global reputation but also captivating coffee enthusiasts worldwide.
The turning point came in 2002 when Peterson’s youngest son, Daniel Peterson, noticed that while the overall quality of coffee beans mixed from different sections of the farm was good, some areas produced beans with particularly elegant citrus aromas and sweetness. He conducted a series of cuppings and found that these unique flavors mainly originated from the higher-altitude Jaramillo area, where a number of coffee trees—yielding less fruit but growing slowly—were later identified as the GEISHA variety.
In 2004, Finca Esmeralda first entered the GEISHA variety into the BOP competition. Its full body and captivating aroma immediately captured the judges’ attention, not only winning the prestigious title of “Best of Panama” but also fetching a record-breaking price of $21 per pound at the auction that year. From 2005 to 2010, the variety continued to dominate major competitions, establishing Finca Esmeralda as a leader in the global specialty coffee scene.
Beyond GEISHA, Finca Esmeralda has also achieved other notable accolades, including multiple wins in the Cup Tasters Championship and annual coffee rankings by the Specialty Coffee Association of America (SCAA), as well as consistent Rainforest Alliance quality certifications. Today, Finca Esmeralda is recognized as one of the most award-winning coffee estates in the world.
Among its many specialty coffee offerings, Diamond Mountain is a relatively accessible yet high-quality product line. This coffee is grown in the Canas Verdes and Jaramillo regions of the Boquete region, at altitudes of approximately 1400 to 1600 meters, primarily featuring the Typica, Bourbon, and Catuai varieties. The volcanic soil and natural shade provided by the primary forest in this area give the green beans rich fruit aromas, chocolate notes, and spicy undertones.
Although not as expensive or rare as GEISHA, the Diamond Mountain series remains one of the most highly praised coffees under the Finca Esmeralda label. Notably, this series uses the Catuai variety, which was created in 1949 by crossing Yellow Caturra with Mundo Novo. It combines high yield, disease resistance, and excellent flavor performance.
The name Catuai comes from the Guarani word “multo mom,” meaning “very good.” This variety is divided into Yellow Catuai and Red Catuai. In addition to its high-yielding nature, its plants are relatively short, allowing for higher planting density—typically twice that of Bourbon. Moreover, Catuai beans are clean and bright, with mild acidity, pleasant sweetness, and good balance, making it a popular choice among many Central and South American coffee farms.
Finca Esmeralda’s Diamond Mountain coffee is primarily grown in the two independent farms of Jaramillo and Canas Verdes. The volcanic soil and native forests in these areas provide excellent growing conditions, naturally infusing the beans with rich fruit aromas and moderate sweetness. Even though it’s not the GEISHA variety, Diamond Mountain still demonstrates the consistently high standards of Finca Esmeralda.
In addition to its exceptional geographic environment and premium variety, Finca Esmeralda pays great attention to coffee processing methods. Diamond Mountain coffee mainly undergoes natural (sun-dried) processing. After harvest, the coffee cherries are cleaned and then spread out evenly in the courtyard to dry. During this process, the beans remain in prolonged contact with the fruit pulp, allowing them to absorb more sugars and develop intense fruit aromas and fermented flavors.
Depending on weather and environmental conditions, the sun-drying process may sometimes begin with an initial 3 to 5 days (about 8 hours per day) of drying on a concrete platform to reach a certain level of dryness. Once adequately dried, the beans are transferred to a Guardiola dryer and rotated for 72 hours to ensure even dehydration and reduce the risk of mold. After drying, the fruit pulp is removed by machine, and the beans are rested in nylon bags for 30 to 45 days. This “resting period (reposo)” helps stabilize the flavors and improve extraction performance.
The Diamond Mountain coffee introduced by this shop is mostly medium-light roasted to preserve the bright acidity and red berry aromas unique to the Catuai variety. Observing the green beans, you’ll notice a yellowish color, more sun-dried silver skin, slightly flattened beans with slender tips—classic visual traits of the Catuai variety.
Recommended pour over parameters are as follows: use a V60 #01 filter, control water temperature at 90–91°C, use about 15 grams of coffee, with a 1:15 coffee-to-water ratio, and grind size at medium-fine (approximately 80% passing through a Chinese standard No. 20 sieve). Employ a three-stage brewing method: start with a 30-second bloom using 30 grams of water, then pour in a small circular motion until reaching 125 grams for the first pour. When the water level is about to expose the coffee bed, pour again up to 225 grams, then stop and wait for the water level to drop before removing the filter. Total brew time is around 2 minutes.
After brewing, the Diamond Mountain Catuai coffee reveals bright citrus acidity, a rich nutty tone, natural honey sweetness, with slight fermentation notes and a silky mouthfeel. The finish echoes a mellow cocoa aroma. It’s a specialty coffee that’s perfect for everyday drinking and also showcases your pour over skills.
The above content is compiled by CoffeeHunters, a coffee news website.
