Costa Rica Tarrazú Single-Origin Coffee: San Román Washed Process

If you’ve been searching for what makes Costa Rican coffee so distinct in the specialty market—especially those small-lot beans praised by roasters worldwide—the answer often lies not in the farm alone, but in the processing choices made at nearby mills. For over a decade, a quiet revolution led by community-focused processing hubs in regions like Tarrazú and West Valley has challenged global perceptions of Costa Rican coffee.

The key? Smallholder farms delivering cherries to a centralized mill—like San Román—that carefully sorts, processes, and dries them to highlight unique cup profiles. The result is coffee with deep sweetness, structural balance, and surprising complexity.

What Is San Román Royal Coffee?

San Román is a washing-station mill located in Costa Rica’s famed Tarrazú growing region, sitting at 1,700 meters above sea level. It works primarily with nearby smallholder farms—often family-run operations cultivating less than one hectare each. The mill receives red cherry from these plots, hand-sorts them on arrival to remove underripe or overripe fruit, then processes them using a three-disc Aagaard depulper to remove skin and pulp.

Beans are then density-separated by machine into three grades. Grades 1 and 2 undergo separate fermentation, while Grade 3, considered lower quality, is excluded from the premium lot. The higher-grade beans ferment in cool conditions for 24 to 36 hours, then are washed and density-graded again on channels. Some lots are additionally soaked in clean water overnight. After drying, these beans become part of the ‘Royal’ selection—a designation denoting quality and consistency—and are eventually exported for roasting.

Why Does Processing Matter So Much?

The washed (or wet) process dominates Costa Rican coffee production due to the country’s long-standing water-resource infrastructure and commitment to clarity in the cup. But San Román takes it further: by separating densities and fermenting with care, it enhances sweetness and structure without sacrificing acidity. This method, combined with meticulous sorting, ensures a cleaner, more defined profile than mass-processed lots.

The 24–36 hour fermentation window is relatively standard but critical—too short and the coffee lacks complexity; too long and off-flavors can develop. Post-fermentation, density sorting once again plays a role in separating beans by cup potential. These steps, repeated precisely across small lots, help explain why San Román’s output tastes markedly different from commodity-grade Tarrazú coffees.

Flavor Profile & Roast Level

This particular Royal selection from San Román is a blend of Caturra and Catuai varieties, grown at high elevation (1,700m) in Tarrazú. After medium-dark roasting, it develops flavors of dark chocolate, caramelized sugar, creamy texture, and subtle wine-like acidity. Additional tasting notes include bright berry, light spice, and a sweet, buttery finish reminiscent of toffee.

The roast level is medium-dark—a balance that allows the inherent fruit and floral undertones to shine while adding a rounded, chocolaty body often sought in espresso or filter blends. This profile has made it a favorite among roasters looking for a Costa Rican cup with both tradition and depth.

The Broader Coffee Context in Costa Rica

Coffee was introduced to Costa Rica in 1779 from Cuba and first exported in 1820. By 2006, the country had around 32,000 coffee farmers, most managing less than one hectare. With a population of 4.1 million, Costa Rica dedicates 82,500 hectares to coffee, producing 1.7 million 60kg bags annually. Of these, 380,000 bags are consumed domestically—equating to 5.5kg per capita, higher than Japan’s 4kg and far above Taiwan’s 1kg average.

The country’s coffee-growing history began on the volcanic slopes of Poás and Barva, now part of the Central Valley. Over time, seven main regions emerged, spread from northwest to southeast along the central plateau. These include Tarrazú, Tres Ríos, Orosi, Central Valley, West Valley, Turrialba, and Brunca.

Volcanic soils, mild temperatures, stable rainfall, and high altitudes create ideal conditions for coffee cultivation. Tarrazú itself is known for its fertile volcanic earth, excellent drainage, dense forest cover providing natural shade, and pronounced day-night temperature variation—all factors contributing to its reputation for high-quality beans.

Frequently Asked Questions

What is the San Román coffee mill?

San Román is a centralized washing station located in Costa Rica’s Tarrazú region, at 1,700 meters altitude. It processes cherries from nearby smallholder farms, focusing on quality separation, density grading, and careful fermentation to produce premium lots, including its Royal selection.

What processing method is used for San Román Royal Coffee?

The coffee is processed using the washed (wet) method. Cherries are depulped with a three-disc Aagaard machine, then sorted by density, fermented for 24–36 hours, washed, and some lots are soaked overnight. This method enhances clarity, sweetness, and structure.

What coffee varieties are in the San Román Royal lot?

The Royal selection includes a blend of Caturra and Catuai varieties, both common high-altitude cultivars in Costa Rica known for their balance, brightness, and suitability for washed processing.

Where is Tarrazú and why is it important?

Tarrazú is one of Costa Rica’s seven main coffee-growing regions, located in the central highlands. It is renowned for its volcanic soils, high altitudes (around 1,700–1,800m), and excellent cup quality, making it a top source of Costa Rica’s specialty-grade beans.

How does density sorting affect coffee flavor?

Density sorting separates beans by physical density, which correlates with ripeness and processing quality. Denser beans typically have better cup potential, leading to more uniform and complex flavors in the final roasted product.

What roast level is this coffee best enjoyed at?

This San Román Royal Coffee is medium-dark roasted to highlight both the chocolatey body and underlying berry-spice notes. It works well for filter and espresso brewing, balancing sweetness and acidity.

Recommended FrontStreet Beans for Washed Process Fans

For lovers of clean, structured Costa Rican coffee like the San Román Royal lot, try FrontStreet’s Classic Blend, which highlights balanced acidity and nutty sweetness. For something brighter and fruit-forward, the Strawberry Candy Espresso brings intense berry and caramel tones from washed Yirgacheffe and Sidamo beans. And for honey-process fans, the Panama Humbera shows off how complexity builds through careful fruit retention—offering floral and stone fruit notes with a syrupy body. All three showcase the finesse of well-processed single origins. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.