Passenger Coffee

Anibal Sanchez Burbano - Washed Process - 2025

colombia light roast washed gesha
floral honeynectarinered grape

Gesha is associated with Panama and Ethiopia. Finding it in Huila requires some context. Gesha is classified by the World Coffee Research catalog as an Ethiopian landrace — it was collected in Ethiopia's Gesha district in 1931 and largely ignored until its rediscovery in Panama in 2004, where it set price records and triggered a global planting wave. Colombian producers began trialing it seriously in the 2010s, and Huila's growing conditions — deep volcanic soil, elevations between 1,700 and 2,000 meters, strong diurnal temperature swings — turned out to be compatible with what Gesha needs to express its aromatic potential. At 1,900 meters in La Argentina, cherry maturation slows to the pace that builds the volatile precursors Gesha is known for. The variety's distinctive jasmine and bergamot aromatics come from phenylalanine undergoing Strecker degradation during roasting — phenylalanine converts to phenylacetaldehyde, producing the honey and floral character the synthesis describes. The nectarine and red grape notes trace to volatile esters and the interaction of citric and malic acids at light roast temperatures, before development burns them off. Washed processing is the right choice for Gesha. The whole point of this variety is aromatic clarity — fermentation-derived esters from natural or honey processing would compete with the floral volatiles rather than support them. Depulping on harvest day and fermenting in tanks strips the mucilage cleanly, letting the Ethiopian landrace genetics express without interference. Light roasting is essential. Gesha's most valued compounds — the fragile aromatics from Strecker degradation — are among the first volatiles lost to heat. Pulling early keeps them intact while still allowing enough Maillard development to build body. The result is a [Colombian coffee](/blog/single-origin-colombian-coffee-what-flavor-notes-to-expect) with a flavor profile that doesn't read like Colombia at all.
Chemex 6-Cup 95/100
Grind: 500μm Temp: 93°C Ratio: 1:15.0-1:16.0 Time: 3:30-4:30

The 95/100 match here comes down to what the Chemex filter does to Gesha's aromatic architecture. The thick bonded paper removes essentially all oils and fine sediment, which means honey-floralStrecker degradation products from this 1,900m Huila lot are not competing with lipid-carried compounds. The grind sits at 500μm — 50μm finer than the neutral default, split between the light roast's density and Gesha's delicate aromatic character — because light-roasted Colombian Gesha at high altitude resists extraction: denser beans extract more slowly, and the fragile floral volatiles demand even extraction to avoid sourness from fast-extracting acids dominating. The 1:15.5 ratio compensates for the light roast's lower solubility without concentrating bitter-adjacent CGAs. Temperature at 93°C, one degree below default, protects the heat-sensitive aromatic compounds that make this variety worth brewing on a Chemex in the first place.

Troubleshooting
sour: Grind finer by ~22um and raise temp 1C. At 1,900m, this Gesha's high density and light roast means fruity acids extract before sweeter Maillard compounds catch up. Finer grind increases surface area to pull extraction toward balance.
thin: Increase dose by 1g or reduce water by 15g; optionally try a metal filter. Light-roasted Gesha has lower solubility than darker coffees, so underdosing on the Chemex yields a TDS that reads watery rather than tea-like. More dose first before switching filters.
Hario V60-02 87/100
Grind: 450μm Temp: 93°C Ratio: 1:15.0-1:16.0 Time: 2:30-3:30

The V60's single-wall cone and open spiral ribs create faster drainage than the Chemex, which trades some filtration intensity for brew control. For this washed 1,900m Gesha, the 450um grind works because Gesha's light roast and high altitude produce a dense bean that requires more surface area contact to release the Strecker-derived honey-floralresponsible for floral honey character. The faster drawdown of the V60 means the bloom and pour pacing matters: a 45-second bloom is essential to degas this lightly roasted bean properly so CO2 does not create uneven channels that extract acids preferentially. At 93C and 1:15.5 ratio, this setup asks the V60 to do what it does best — deliver the bean's natural aromatic signature with enough clarity to distinguish floral from fruit, and nectarine from red grape.

Troubleshooting
sour: Grind finer by ~22um and raise temp 1C. The V60's faster flow can under-extract light-roasted Gesha if grind is too coarse — fruity acids are out before the floral Maillard compounds develop. Finer grind slows drawdown and increases contact time.
thin: Increase dose by 1g or reduce water by 15g. Light roast means fewer available solubles per gram at extraction. On the V60, this reads as a weak, flat cup lacking the nectarine sweetness. More dose or slightly higher concentration corrects it.
Kalita Wave 185 86/100
Grind: 480μm Temp: 93°C Ratio: 1:16.0-1:17.0 Time: 3:00-4:00

The Kalita Wave's flat-bottom bed and three small holes create a more controlled, uniform extraction than a V60 — water dwells longer across the full coffee bed rather than funneling toward a central drain. For this washed Colombian Gesha at 1,900m, that uniformity is particularly valuable: Gesha's aromatic compounds are volatile and extract unevenly if some portions of the bed are channeling. The 480um grind and 93C temperature align with the light roast's extraction challenge — dense, high-altitude Gesha needs finer grind and longer bed contact to extract fully. The 1:16.5 ratio reflects the Wave's slightly longer dwell time, which contributes marginally more body. Even extraction here is what delivers the coherent floral honey and red grape character rather than disjointed sourness.

Troubleshooting
sour: Grind finer by ~22um and raise temp 1C. Even with the Wave's flat-bed uniformity, light-roasted high-altitude Gesha resists extraction. Sour indicates the acids extracted before the floral Maillard compounds could build. Finer grind extends contact time.
thin: Increase dose by 1g or reduce water by 15g. Light-roasted Gesha has fewer available solubles than its density implies. On the Kalita Wave, thin body usually means underdosing rather than a filter problem — adjust dose before ratio.
Clever Dripper 80/100
Grind: 480μm Temp: 93°C Ratio: 1:15.0-1:16.0 Time: 3:00-4:00

The Clever Dripper combines immersion steeping with paper filtration — a hybrid that gives this washed Gesha more extraction contact time than a V60 while still filtering oils for aromatic clarity. For a light-roasted Ethiopian-landrace variety grown at 1,900m in Huila, the extended contact of the immersion phase helps overcome the density and solubility challenge: the 480um grind creates enough surface area to extract during the 3-4 minute steep before the valve opens. The paper filter then strips the oils, allowing the volatile honey-floral character to come through without lipid interference. At 93C, the temperature is calibrated for Gesha's heat sensitivity. The result sits between the Chemex's pure clarity and the French press's body — closer to the Chemex in aromatic resolution, but with slightly more roundness from the immersion contact.

Troubleshooting
sour: Grind finer by ~22um and raise temp 1C. Even with full immersion, light-roasted 1,900m Gesha extracts slowly. Sour here means acids exited during steeping but caramelization products did not follow. Finer grind accelerates full-spectrum extraction.
thin: Increase dose by 1g or reduce water by 15g. The Clever Dripper's paper filter removes oils that contribute body, leaving light-roasted Gesha feeling thin at standard dose. More coffee weight is the most direct fix before adjusting ratio.
AeroPress 79/100
Grind: 350μm Temp: 84°C Ratio: 1:12.0-1:13.0 Time: 1:00-2:00

The AeroPress at 84°C is the outlier among the pour-overs for this Gesha, and that lower temperature is intentional. Slurry temperature runs 5-15°C below kettle temp in most setups, and the AeroPress's immersion contact means the grounds actually see more uniform heat exposure than a drip cone. At 84°C, the extraction environment is cooler than optimal for most coffees — but for a light-roasted, 1,900m washed Gesha, this deliberately slows the extraction of harsh acids while still pulling the more soluble aromatic volatiles that produce floral honey and nectarine character. The 1:12.5 ratio is more concentrated than a pour-over, compensating for the reduced extraction efficiency at lower temperature. The 350μm grind extends contact surface to bridge the temperature gap.

Troubleshooting
sour: Grind finer by ~22um and raise temp 1C. At 84C, light-roasted Gesha is already pushing extraction limits. Sour indicates acid-forward under-extraction — finer grind increases surface area to compensate for the lower temperature.
thin: Increase dose by 1g or reduce water by 15g. The AeroPress's concentrated ratio should prevent thinness, but light-roasted Gesha at lower temperature extracts fewer solubles. Adding dose is more effective than raising ratio on this setup.
Espresso 76/100
Grind: 200μm Temp: 92°C Ratio: 1:1.9-1:2.9 Time: 0:28-0:35

Espresso at 76/100 reflects a real tension: this 1,900m washed Gesha is dense and low-solubility — it needs longer preinfusion and a pushed ratio (1:2.4 range, not a ristretto) to avoid stalling and channeling. At 200μm grind and 92°C, the recipe is already calibrated toward maximizing contact and temperature for an under-soluble light roast. The key mechanism is that 9-bar pressure extracts compounds that gravity methods cannot — oils, heavier melanoidins — which on a washed Gesha produces a concentrated floral-acidic intensity. Preinfusion is critical: saturating the dense puck before applying full pressure prevents channeling where acids extract from fast lanes while the rest under-extracts. Expect a brighter, more citric shot than the nectarine-forward pour-over expression.

Troubleshooting
sour: Grind finer by ~10um and raise temp 1C. Light-roasted dense Gesha channels easily at espresso pressure — acids exit fast lanes while the rest under-extracts. The small grind adjustment slows flow to improve evenness without stalling the shot.
thin: Increase dose by 1g or reduce yield by 15g. At 92C with a light roast, solubles are limited. Thin espresso from Gesha usually means the ratio is too long — tighten the yield target rather than grinding finer, which risks bitterness.
Moka Pot 71/100
Grind: 300μm Temp: 99°C Ratio: 1:9.0-1:10.0 Time: 4:00-5:00

The moka pot at 71/100 is a constrained format for this washed Gesha. Moka pots produce roughly 1.5 bar — far less than espresso's 9 bar — which limits extraction efficiency, and the recipe's 99°C water temperature (using pre-boiled water per Hoffmann's method) compensates by maximizing diffusion rates. The 300μm grind sits between espresso and AeroPress territory — fine enough to generate the resistance needed for pressure extraction at 1.5 bar, with the 50μm finer-than-default adjustment accounting for the light roast and Gesha variety's extraction characteristics. The 1:9.5 ratio is concentrated to offset the moka pot's typically lower extraction yield. For this high-altitude washed Gesha, the primary risk is sourness: the pressurized hot-water-through-dense-bed format under-extracts easily, leaving the floral honey character truncated behind a citric-acid wall.

Troubleshooting
sour: Grind finer by ~22um and ensure pre-boiled water in the base. Light-roasted Gesha resists extraction at moka pot pressures. Pre-boiled water prevents cooking grounds before pressure builds, which compounds the under-extraction problem on this dense, high-altitude bean.
thin: Increase dose by 1g or reduce water by 15g. Light-roasted Gesha extracts fewer solubles per gram than the moka pot format expects. Fill the basket fully and ensure no tamping — thin results here are usually underdosing or overly coarse grind.
strong: Decrease dose by 1g or increase water by 15g. If the concentrated moka pot ratio overshoots with this Gesha, dilute slightly. The 1:9.5 default is conservative — at 1,900m altitude, extraction can run higher than expected if grind is fine.
French Press 67/100
Grind: 950μm Temp: 95°C Ratio: 1:14.0-1:15.0 Time: 4:00-8:00

French press is the lowest-ranked hot method for this washed Gesha, and the reasons are structural. Without paper filtration, oils and fine sediment pass into the cup — adding body but also introducing cafestol and fine particulates that muddy the aromatic clarity Gesha's honey-floral depends on. At 950um grind, the goal is to coax extraction from a light-roasted bean that resists it without creating fines so fine they clog the metal mesh and stall drainage. The 95C temperature — warmer than the pour-over temps — compensates for the coarser grind and immersion format's lower extraction efficiency. The 1:14.5 ratio creates enough concentration that the floral and nectarine notes are not washed out by the method's inherent body. Expect a heavier, less aromatic version of this bean than the Chemex would produce.

Troubleshooting
sour: Grind finer by ~22um and raise temp 1C. Light-roasted Gesha in a French press under-extracts more easily than darker coffees — the coarse grind and no-pressure format means acids exit first. Finer grind at 950um baseline increases extraction before bitterness enters.
thin: Increase dose by 1g or reduce water by 15g. The French press should produce body via unfiltered oils, but light-roasted Gesha is genuinely lower in extractable solids. If the cup tastes watery, add dose rather than steeping longer, which risks bitterness.
Cold Brew Flash 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.