Washed Red Bourbon at medium-dark sits at a specific intersection of chemistry. Bourbon — a Typica mutation that reached El Salvador via Brazil and Central America through the mid-1800s — is a Bourbon-Typica group variety known for sweet, complex, delicately acidic cups at lighter roast levels. Medium-dark changes what's available.
The brown sugar character in this lot comes from Maillard reaction products — the browning compounds produced when amino acids react with reducing sugars during roasting. At medium-dark levels, melanoidin formation is well advanced: these high-molecular-weight compounds are responsible for body and mouthfeel. More melanoidins mean more perceived weight in the cup. Dark chocolate maps to Strecker degradation products, specifically leucine breaking down into 3-methylbutanal (dark chocolate) and isoleucine into 2-methylbutanal (cocoa). These reactions happen in every roast but dominate at medium-dark where lighter-volatile fruit esters have largely cooked off.
The plum note is interesting in a washed context — without the fruit-derived fermentation compounds that natural processing contributes, plum at medium-dark is primarily Maillard-derived: dark, dried-fruit browning compounds formed as caramelization pushes past simple sweet and into complex savory territory.
Washed processing at 1,520m — right at El Salvador's median altitude — means the bean's [terroir expression is relatively clean](/blog/coffee-processing-methods-explained): fermentation in water tanks removes fruit mucilage, stripping away the variables natural processing introduces and letting what the soil and elevation put into the seed come through. Higher-altitude washed lots extract more due to greater soluble concentration. At 1,520m, this is solid El Salvador territory — dense enough to reward extraction discipline, forgiving enough to be consistent batch to batch.
Cold brew scores 87/100 for Finca Nejapa Los Vientos — the top match for this bean, and the pairing logic is straightforward for a medium-dark washed Red Bourbon. At this roast level, the brown sugar character comes from caramelization products developed during roasting, not from residual sucrose (which is fully consumed by this roast level). Cold water extraction preserves those sweet, caramelized flavors while suppressing extraction of the harsher bitter compounds that medium-dark roasting also creates — meaning less astringency and less bite entering the cup. The result is a smooth, sweet concentrate that leans into brown sugar and dark chocolate without the edge that hot extraction can introduce. The 920μm grind (slightly coarser than default for the darker roast) and 12-18 hour steep give the sweet, rounded flavors time to fully develop.
Troubleshooting
bitter: Grind coarser by ~22μm and reduce temperature 1°C (ensure refrigerator steep, not room temp). Even in cold brew, this medium-dark Red Bourbon's high solubility means extended steep at warmer ambient temperatures can push bitter compounds forward. 12-14 hours at refrigerator temp is the optimal window per Cordoba et al. (2019) sensory data.
strong: Decrease dose by 1g or increase water by 15g. The washed processing and medium-dark roast combine for a high-TDS concentrate — this bean's clean fermentation baseline (no natural-process fermentation compounds adding complexity) means strength is the primary variable to manage. Dilute 1:1 for a full-flavor ready-to-drink ratio.
flat: Grind finer by ~22μm and steep 2°C warmer or check bean freshness. Flat cold brew from this Red Bourbon indicates either stale beans or insufficient extraction. Medium-dark with spent CO2 (roasted more than 4-6 weeks prior) loses the brown sugar aromatic compounds that cold brew concentrates — roast date is the first thing to check.
Espresso scores 85/100 here because washed Red Bourbon at medium-dark from 1,520m El Salvador hits the classic espresso-favorable intersection: high solubility, dense bean structure (Bourbon-group cultivars are denser than Typica-group), and a flavor profile built around Strecker and Maillard compounds that concentrate well under 9-bar pressure. The 90°C extraction temperature (3°C below default) prevents the roast's advanced bitter compounds from mobilizing too aggressively. The 270μm grind (20μm coarser than standard for the darker roast) creates appropriate puck resistance. The 1:1.3-1:2.3 output range enables ristretto pulls, which works well for this high-solubility profile where shorter ratios extract the sweet compounds before bitterness develops. Ristretto concentrates the brown sugar and dark chocolate without extending into the bitter end — the plum character becomes jammy and intensified at shorter ratios.
Troubleshooting
bitter: Grind coarser by ~10μm and reduce temperature 1°C. Red Bourbon's medium-dark development means CGA breakdown products (quinic acid) are already elevated; espresso's pressure and concentration amplify bitterness quickly. The narrow 10μm adjustment preserves flow rate while backing off the dry distillate threshold.
strong: Pull to the longer end of the ratio range (toward 1:2.3) or decrease dose by 1g. This washed Bourbon at medium-dark produces very high TDS at tight ratios due to its high solubility — the ristretto range is viable but can easily become overwhelming if the grind is even slightly too fine.
AeroPress reaches 84/100 for Finca Nejapa Los Vientos primarily because of temperature control precision. Washed Red Bourbon at medium-dark has advanced Strecker degradation products — Strecker degradation products contributing chocolate and cocoa character — and these compounds dissolve readily at elevated temperatures, but bitter compounds follow closely. The 82°C recipe temperature exploits the selectivity window: medium-dark's higher solubility means sweet caramelization compounds and Maillard products extract at lower temperatures than they would from a light roast, while the slower-extracting bitter compounds remain suppressed at 82°C. The 14g/186g at 420μm and 1:13 ratio delivers a concentrated expression. Inverted method adds useful control — bloom at 30-45 seconds, full steep, then press by 1:50.
Troubleshooting
bitter: Grind coarser by ~22μm and reduce temperature 1°C. At 82°C this is already conservative, but Red Bourbon's medium-dark development at 1,520m means the grind's surface area is the primary variable. Coarser grind reduces extraction rate, keeping plum and brown sugar forward while dry distillates stay suppressed.
strong: Decrease dose by 1g or increase water by 15g. Washed Red Bourbon at medium-dark has high solubility — the 1:13 AeroPress ratio concentrates effectively, and the bean's dense melanoidin content means TDS climbs faster than with lighter roasts. A small water increase significantly drops perceived strength.
The Clever Dripper's 83/100 for Finca Nejapa Los Vientos reflects the immersion-plus-paper hybrid's particular advantage for this bean. Washed Red Bourbon at medium-dark has a well-developed but tight flavor window: brown sugar sweetness and dark chocolate are Maillard products that extract in the middle yield phase; the plum note (Maillard-derived dark-fruit browning in a washed coffee) requires even extraction to emerge distinctly rather than blending into a generically dark background. The Clever's immersion phase pre-saturates all grounds uniformly before controlled drawdown begins — this reduces the uneven extraction that can flatten or muddy medium-dark Bourbon character. The 18g/293g at 550μm and 91°C recipe gives sufficient contact time for the browning compound profile to develop without running hot enough to pull excessive bitterness from well-advanced roast products.
Troubleshooting
bitter: Grind coarser by ~22μm and reduce temperature 1°C. The Clever's immersion component extends total extraction time — for this medium-dark Red Bourbon, the combination of immersion plus paper drawdown can push into dry distillate territory if temperature is at the high end. Dropping both variables creates the most headroom.
strong: Decrease dose by 1g or increase water by 15g. The Clever extracts more efficiently than pourover at the same ratio because the immersion phase saturates grounds fully. This washed Red Bourbon at medium-dark amplifies that effect through its high solubility — a small upward water adjustment recovers balance quickly.
Moka pot scores 82/100 for Finca Nejapa Los Vientos — a functional pairing where pressure concentration and unfiltered output serve the bean's body-forward medium-dark character. Moka's ~1.5 bar doesn't replicate espresso extraction dynamics, but it does push water through the coffee bed under positive pressure, concentrating the brown sugar caramelization compounds and dark chocolate Strecker products more than gravity allows. The 18g/185g at 370μm and 97°C starting-water temperature (use pre-boiled water to avoid bottom-heating grounds during the slow temperature rise) keeps heat exposure controlled. Red Bourbon at 1,520m has enough solubility that moka produces a genuine concentrate; this is a good bean for moka-based drinks where the concentrated base benefits from milk or dilution. Remove from heat the moment sputtering begins — this bean's solubility makes over-extraction the primary failure mode.
Troubleshooting
bitter: Grind coarser by ~22μm and confirm you're using pre-boiled water. Moka pot's rising-heat mechanism is the main risk for this medium-dark Red Bourbon — grounds sitting above cold water heat slowly and extract bitterness before full pressure flow begins. Pre-boiling water is the most effective single adjustment.
strong: Decrease dose by 1g or add water to the upper chamber after brewing. Washed Red Bourbon at medium-dark has elevated solubility — moka produces concentrate, and this bean's high extraction efficiency means the output is denser than lighter or less-soluble coffees at the same basket weight.
French press scores 82/100 for this washed Red Bourbon — immersion format and metal mesh filtration work together to express the melanoidin-rich body that Bourbon-group medium-dark development builds. The 26g/397g recipe at 1,020μm coarse grind and 93°C runs slightly warmer than pourover options because the immersion format's large water volume drops temperature more rapidly; the 93°C target maintains appropriate slurry temperature through the steep. Red Bourbon's Bourbon-group parentage means dense beans with pronounced body potential — Hoos's cultivar data shows Bourbon needs more energy input than Typica and produces heavier melanoidin development. The metal mesh preserves those lipids. Using Hoffmann's extended rest method (4-minute steep, then 5-8 minutes after pressing) allows grounds to settle and produces a cleaner cup while retaining the brown sugar character.
Troubleshooting
bitter: Grind coarser by ~22μm and lower temperature 1°C. Eight-minute French press contact at 93°C with this medium-dark Bourbon risks extracting dry distillate compounds. The Hoffmann rest method — pressing at 4 minutes but waiting 5-8 additional minutes before pouring — cleans the cup without reducing active extraction time.
strong: Decrease dose by 1g or add 15g more water. French press passes more dissolved solids than filtered methods — this washed Red Bourbon's high medium-dark solubility means TDS accumulates significantly over the long steep. Small dose reductions have outsized effect on final cup strength.
The Kalita Wave's 80/100 match for this washed Red Bourbon reflects the flat-bed geometry's main advantage: even extraction across the entire coffee bed. Bourbon-group varieties roasted to medium-dark produce a relatively uniform particle density — the slower first-crack timing means the interior has had full heat exposure — so the Kalita's restricted three-hole drainage, which forces water to distribute before exiting, matches this bean's consistency well. The recipe runs 20g/345g at 550μm and 91°C. Pulse pouring is important here: Red Bourbon's Maillard-heavy medium-dark roast benefits from controlled water contact rather than continuous pour, which can agitate fines and clog the wave filter. The brown sugar and plum character come through well; the dark chocolate deepens with slightly longer steep time within the 3-4 minute window.
Troubleshooting
bitter: Grind coarser by ~22μm and drop temperature 1°C. The Kalita's flat-bottom restricts drainage, extending contact — for this medium-dark Red Bourbon from El Salvador, even brief over-extraction tilts the brown sugar balance toward bitter polyphenols. Keep pours away from filter walls to prevent channeling.
thin: Increase dose by 1g or reduce water by 15g. If the cup lacks brown sugar body after ratio adjustment, try a metal Kalita filter — Red Bourbon at medium-dark builds significant melanoidin content that paper partially traps. The variety's characteristic weight comes through more fully with metal filtration.
V60 scores 69/100 for this washed Red Bourbon because clarity-emphasis conflicts with what medium-dark development builds into a Bourbon-group variety. Red Bourbon at 1,520m El Salvador has gone through a longer Maillard development phase than a Typica-group bean would — Bourbon-group cultivars reach first crack around 8:30-9:00 minutes versus Typica's 7:30, requiring more energy input. That longer Maillard phase produces higher body from roast development (body, mouthfeel weight). V60's open drainage and paper filtration strip those oils and suspended compounds. The recipe runs 19g/309g at 520μm and 91°C — the grind is 20μm coarser than default for the dark roast level (altitude at 1,520m produces no adjustment). The brown sugar and dark chocolate profile that defines this lot emerges better in immersion or pressure formats where body-contributing compounds aren't filtered away.
Troubleshooting
bitter: Grind coarser by ~22μm and reduce temperature 1°C. Washed Red Bourbon at medium-dark has advanced melanoidin and Strecker product development — V60's conical drainage can create uneven extraction where faster-draining center particles over-extract while perimeter areas under-extract, spiking bitter dry distillates.
thin: Increase dose by 1g or reduce water by 15g. Red Bourbon's melanoidin-rich character at medium-dark depends on body-contributing oils that V60's paper removes aggressively. A metal V60 filter allows more lipid transfer and is particularly effective at recovering this variety's characteristic weight.
Chemex scores 65/100 for Finca Nejapa Los Vientos because the thick Chemex filter specifically targets the compounds that make washed Red Bourbon at medium-dark interesting. Bourbon-group varieties' longer roast development — built-up melanoidins responsible for the brown sugar sweetness and dark chocolate weight — are precisely what the 20-30% thicker Chemex paper removes versus standard filters. The plum note, already an artifact of Maillard browning at medium-dark rather than fruit-derived fermentation (washed processing strips those), depends on medium-weight aromatic compounds that the thick paper partially traps. The recipe runs 28g/455g at 570μm — the extra 20μm coarser grind versus default reflects the dark roast level — but the filter limitation remains fundamental. The result is a lighter, cleaner version of this coffee that underutilizes what the origin and roast built.
Troubleshooting
thin: Increase dose by 1g or decrease water by 15g. For this washed Red Bourbon, the Chemex filter strips the melanoidin-bound caramel compounds that create the brown sugar character. Bumping dose increases total solubles in the brew, partially compensating for what the thick paper removes.
bitter: Grind coarser by ~22μm and reduce temperature 1°C. Chemex's slower drawdown extends contact time — combined with Red Bourbon's medium-dark solubility at 1,520m El Salvador altitude, prolonged flow can carry dry distillate compounds past the caramel-sweet zone into bitterness.