At 2,200 meters, Narino sits above the altitude range most Colombian specialty coffee is grown in — 500 meters higher than the typical lower bound. The extra elevation means longer cherry maturation: cooler nights slow development from roughly six months toward nine or more, and the diurnal temperature differential preserves sugars that would otherwise respire away in warmer conditions. The result is a denser, more soluble bean with higher concentrations of volatile precursors before roasting begins.
The processing here adds another layer. Rather than a standard 12-36 hour fermentation, this lot moves through three distinct stages: 12 hours of cherry oxidation, 48 hours of wet fermentation, then 60 hours of dry fermentation before raised-bed drying. Each phase shifts which microbial populations are active and what compounds they produce. The extended dry ferment generates volatile esters — compounds responsible for the bubblegum and tangerine character — that a conventional washed process doesn't build in the same concentration.
Pink Bourbon is genetically Ethiopian Landrace despite its name. It roasts in the fast group — similar timing to Ethiopian heirlooms rather than the slower Bourbon cadence — and the light roast here keeps the aromatic work of fermentation intact. Sucrose is nearly fully consumed during roasting, so the perceived sweetness is aroma-mediated: caramelization products like furanones and maltol triggering the brain's sweetness response. The orange blossom and vanilla register that way — volatile aromatics, not residual sugar.
The [coffee altitude guide](/blog/coffee-altitude-guide) covers how elevation explains roughly 25% of variation in extraction yield. At 2,200m, this bean sits well into that high-soluble zone.
The Chemex earns a 96/100 match for this Altos de Quitumpamba because its thick paper filter's oil-stripping effect is especially relevant here. The three-stage fermentation this lot undergoes (12 hours cherry oxidation, 48 hours wet ferment, 60 hours dry ferment) builds volatile aromatics that compete with processing-derived oils for sensory dominance. The Chemex filter removes those oils, isolating the fruit and floral character: bubblegum sweetness, tangerine citrus, floral honey notes, and vanilla-toned sweetness come through cleanly. At 2,200m with very high density, the 480μm grind is 70μm finer than default — the light roast's lower solubility and the extreme altitude density each contribute significant extraction push. A richer 1:15.5 ratio complements the washed, light-roast profile, and the 3:30–4:30 brew time ensures full extraction of the complex fermentation-derived aromatics through the thick filter.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. Extended fermentation at three stages produces both bubblegum esters (desirable) and additional fermentation acids (need extraction to balance). Sour cups indicate extraction stopped before the sweet ester compounds dissolved. Finer grind at this very high density is essential.
thin: Increase dose by 1g or reduce water by 15g; try a metal filter for more body. Pink Bourbon at 2,200m is structurally similar to Ninth Day — very high density, low solubility, limited oils. Thin cups need dose correction. Note that a metal filter will add body but blunt the clean ester signature.
The V60 (88/100) is well-suited for exploring how the Altos de Quitumpamba's three-stage fermentation profile expresses across the extraction curve. The conical geometry's faster flow creates a shorter contact window (2:30-3:30) that, with the correct 430μm grind, captures the bubblegum and tangerine aromatics in the sweet middle extraction phase while limiting the slower-extracting polyphenols that would add astringency. The fermentation-derived complexity here doesn't require additional thermal or grind modifications beyond what the extreme altitude and light roast already dictate. The V60's paper filter ensures the Maillard volatiles driving the perceived sweetness aren't masked by competing oils from the puck.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. At 2,200m — the highest altitude in this batch — this bean has the greatest extraction resistance. The bubblegum and tangerine character emerges in the middle extraction phase; a too-coarse grind stops the extraction in the acid zone before reaching those ester compounds.
thin: Increase dose by 1g or reduce water by 15g. The three-stage fermentation doesn't add solubility — it adds aromatic complexity to what is still a very high density, light-roasted bean. TDS will undershoot at the standard 1:15.5 ratio if dose is insufficient. Increase dose before adjusting ratio.
The Kalita Wave (88/100) provides a particularly useful flat-bed geometry for this Altos de Quitumpamba. The three-stage fermentation produces a bean with complex internal soluble structure: volatile esters from the cherry oxidation phase, more conventional Maillard compounds, and fermentation-derived acidity from the extended wet and dry ferment stages all coexist. These compounds have different extraction rates and particle distribution preferences. The Kalita's flat bottom creates uniform hydraulic resistance, distributing extraction contact evenly across all particle sizes and giving each compound type equivalent access to fresh water. The result is better integration of the bubblegum, tangerine, and vanilla components versus what a cone dripper's uneven geometry might produce. Grind at 460μm, ratio 1:16.5, temp 94°C.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. Extended fermentation acids in this Colombian lot require active extraction through the sourness zone to reach the bubblegum ester sweetness. Finer grind at the Kalita's flat bed increases contact time effectively — do not compensate by slowing pour rate, which causes uneven saturation.
thin: Increase dose by 1g or reduce water by 15g. The 1:16.5 ratio is slightly wider than the V60 — appropriate for the Kalita's flat bed, but can tip thin for this very high density bean at 2,200m. Dose increase corrects TDS without disturbing the flat-bed extraction dynamics.
The AeroPress (82/100) is a particularly interesting format for the Altos de Quitumpamba because its 85°C temperature has a different implication here than for a conventionally washed bean. The three-stage fermentation — especially the 60-hour dry ferment — produces aromatic compounds that are more thermally stable than the enzymatic floral volatiles of standard washed process. This means the AeroPress's lower temperature doesn't sacrifice the bubblegum and tangerine character the way it might sacrifice bergamot aromatics in a washed Ethiopian. The 1-2 minute pressure-assisted brew at 85°C and 330μm grind concentrates the fermentation-derived sweetness: vanilla aroma compounds emerge clearly at 1:12.5 ratio. This bean doesn't require additional thermal or grind modifications beyond what the altitude and light roast already dictate.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. The AeroPress's pressure advantage helps with 2,200m density, but 85°C may not be sufficient to drive extraction through the fermentation acid layer to the bubblegum ester zone. Raising to 86-87°C while going finer on grind is more effective than either adjustment alone.
thin: Increase dose by 1g or reduce water by 15g. At 1:12.5, this already concentrates relative to filter methods, but the three-stage fermentation adds complexity without adding solubility. Dose increase raises TDS while maintaining the ratio balance that integrates the fermentation-derived flavors.
The Clever Dripper (82/100) is a strong format for the Altos de Quitumpamba for the same reason it works well with other complex fermented lots: the extended immersion time allows complex extraction to proceed in parallel rather than sequentially. This coffee's three-stage fermentation profile includes compounds with quite different extraction dynamics — the volatile fermentation-derived aromatics from the cherry oxidation phase are fast-dissolving, while the vanilla and caramel aroma compounds from longer fermentation and Maillard development extract more slowly. In a percolation brewer, the fast-extracting esters dominate early pours; in the Clever's 3-4 minute steep, all compound types have time to reach equilibrium. The result is better integrated expression of bubblegum, tangerine, orange blossom, and vanilla as a unified flavor profile rather than sequential waves. Grind 460μm, temp 94°C, ratio 1:15.5.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. The Clever's immersion advantage is reduced if grind is too coarse to achieve full saturation during the steep. At 2,200m density, very high resistance limits diffusion into particle cores. Extend steep to 4 minutes in addition to finer grind.
thin: Increase dose by 1g or reduce water by 15g. The Clever's full saturation before drawdown is efficient, but cannot create dissolved solids from an insufficient dose. The three-stage fermentation is an aromatic investment — it doesn't produce TDS on its own. Dose is the strength control.
Espresso (81/100) applies the standard light-roast espresso adjustments for this Pink Bourbon — the same approach as other high-altitude light roasts, with identical recipe parameters (19g/45g, 93°C, 180μm, 1:1.9-2.9). The distinction at the cup level is the three-stage fermentation's contribution. Under 9-bar pressure, the volatile aromatic compounds that produce bubblegum and tangerine in filter brewing concentrate dramatically — espresso TDS of 8-12% amplifies aromatic intensity compared to filter's 1.3-1.45%. This can be extraordinary (tangerine and bubblegum at espresso concentration) or overwhelming if the shot undershoots the extraction target and runs sour. Preinfusion is non-optional here: at 2,200m with very high density, the puck needs 7-10 seconds of saturation at low pressure before full ramp to prevent the channeling that would undersell the fermentation complexity.
Troubleshooting
sour: Grind finer by ~10μm and raise temp by 1°C. Highest sour risk of any brewer at 80/100. The three-stage fermentation adds fermentation acids on top of the light roast's intact CGAs — both extract before the bubblegum ester sweetness. Preinfusion is critical: 7-10 seconds before full ramp, then pull to the 1:2.4 target.
thin: Increase dose by 1g or reduce yield slightly. At 2,200m with very high density and low solubility, even espresso's concentrated extraction can produce thin shots if dose is insufficient. Increase dose to 20g before adjusting yield — the ester compounds need adequate bed depth to extract evenly.
The Moka Pot (79/100) at 94°C for this Altos de Quitumpamba follows the same altitude ceiling logic as Ninth Day — the modifier applies here too, and pre-boiling the water before loading the base is essential. For this specific lot, the three-stage fermentation interaction with moka pot pressure is worth noting: the 1.5-bar pressure (versus espresso's 9 bar) is sufficient to concentrate the bubblegum and tangerine aromatics noticeably, but not enough to push through the extraction resistance of 2,200m very high density without the grind doing most of the work. At 280μm grind, the medium-fine setting must be precise — too fine and the moka pot chokes and over-extracts the fermentation acids before the ester sweetness develops; too coarse and the partial pressure underextracts. The 1:9.5 ratio produces a concentrated brew where the vanilla character is most perceptible.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. The moka pot's partial pressure amplifies sour risk for fermented lots — fermentation-derived acids concentrate easily, while the bubblegum esters require more extraction depth to emerge. Pre-boil the water and keep heat at medium-low to prevent the steam surge that causes sour extraction.
thin: Increase dose by 1g or reduce water by 15g. Fill the moka basket fully — this Pink Bourbon at 2,200m has very high density, and headspace reduces pressure development significantly. Thin moka pots from this bean are almost always a dose or seal issue.
strong: Decrease dose by 1g or add 15g water. If the moka pot output is harshly intense rather than concentrated, the fermentation-derived acids have over-extracted. The three-stage process adds acid complexity that amplifies quickly at moka concentration. Reduce dose slightly and remove from heat at the first sound of sputtering.
The French Press (76/100) is the weakest format here — not because the result is unpleasant, but because French press oil-forward character works against this bean's strongest attribute: the multi-stage fermentation's clean ester complexity. The metal filter passes coffee oils, adding a buttery, heavy mouthfeel that overlays rather than complements the bubblegum and tangerine aromatic profile. This is compounded by Pink Bourbon's genetically light structure (Ethiopian Landrace genetics, fast-roast group) producing fewer oils than Bourbon group varieties — so the French press adds oils to a bean that has little of its own, creating imbalance rather than richness. Temperature caps at 94°C, adjusted for the extreme altitude. After plunging, the 5-8 minute rest before pouring is especially beneficial here, allowing the fines-generated silt to settle and prevent the fermentation acids from continuing to extract into the cup.
Troubleshooting
sour: Grind finer by ~22μm and raise temp by 1°C. French press with a three-stage fermented light roast is sour-prone because fermentation acids extract quickly into the immersion environment and the low solubility means the balancing sweet compounds dissolve slowly. Finer grind at 930μm baseline accelerates the ester dissolution in the final minutes of the steep.
thin: Increase dose by 1g or reduce water by 15g. French press passes oils, but Pink Bourbon at 2,200m has very high density with limited intrinsic oil content. The metal filter contribution helps body but cannot substitute for adequate dose. Increase dose first; the oil component is fixed by the filter design.
Cold BrewFlash Brew Recommended
Cold brew is not recommended for this bean. At near-freezing temperatures, cold water cannot extract the complex acids, delicate aromatics, and bright fruit compounds that define a light-roasted coffee — they remain locked in the cell matrix. For a cold version of this coffee, use flash brew: brew a concentrated pour-over (V60 or Chemex at 60% of the normal water volume) directly over ice in the server. The hot water extracts the full flavor spectrum, and the rapid ice cooling locks in volatiles that would otherwise evaporate during a slow cool-down.