Gesha from Colombia planted in Huila sits at the intersection of an Ethiopian landrace variety and one of Colombia's most productive specialty growing regions. What makes this lot worth examining is the roast choice: medium-light, not light — which is atypical for Gesha and creates a different extraction profile than the variety usually sees.
Gesha's signature flavor compounds are volatile and fragile. The jasmine and bergamot aromatics associated with the variety's Ethiopian landrace genetics form through Strecker degradation — phenylalanine converts to phenylacetaldehyde during roasting, producing floral and honey-adjacent compounds. At pure light roast, these survive in higher concentrations. At medium-light, the roaster extends development time past first crack, allowing Maillard reaction products to build further: the nutty and caramelly compounds formed when amino acids and reducing sugars react at higher temperatures deepen the body and bring the vanilla note forward.
At 1,850 meters in Huila, cherry maturation is slow enough to accumulate a strong organic acid base. Washed processing removes the fruit layer and ferments away the mucilage, giving a clean cup that reads the terroir and variety directly. The citric acid note in the flavor profile is the dominant acid in brewed coffee — the only one that consistently exceeds its sensory detection threshold — and it survives medium-light development intact. The vanilla character is aroma-mediated: furanones and Maillard browning products that the brain interprets as sweet and vanilla-adjacent, not residual sugar, which is nearly 100% consumed during roasting.
The 87-point cup score reflects a well-resolved extraction window. Medium-light Gesha from Huila rewards [knowing what flavor notes to expect](/blog/single-origin-colombian-coffee-what-flavor-notes-to-expect) from this origin before dialing in — the profile reads differently from the Panama-style Gesha most specialty drinkers know as the reference point.
The V60 earns the top match for this medium-light Colombian Gesha because it preserves aroma while delivering extraction clarity, and Gesha's defining qualities — floral, honey-like aromatics and vanilla sweetness — are delicate compounds that are best experienced in a clean cup without oil interference. The recipe adjusts temperature to 92°C (2°C below default), applying both a roast adjustment and a variety-specific penalty for Gesha's fragile aromatic profile. Higher temperatures would drive off these compounds before they reach your nose. The 470μm grind is 30μm finer than default, reflecting medium-light solubility (lower than medium roast, higher than light) plus Gesha's slightly easier dissolution compared to dense Bourbon or Typica varieties. The 1:15.8 ratio is a touch richer than standard V60, appropriate for this roast level.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C to 93°C. This Colombian Gesha at medium-light sits between full light (acid-dominant) and medium (balanced). Sourness suggests extraction stalled before vanilla and citrus sweetness compounds dissolved — finer grind is the primary fix, but be cautious of over-volatilizing the Gesha aromatics with temperature.
thin: Add 1g coffee or reduce water by 15g. Gesha is a naturally light-bodied variety — the WCR rates it as low-yield with delicate structure. Thinness in the cup may be partly character-typical rather than a flaw, but if TDS is genuinely low, increasing dose addresses it directly.
The Kalita Wave scores 86/100 here — nearly as high as the V60 — because its flat-bottom design protects the vanilla and citrus notes in a specific way. The even extraction prevents any one zone of the coffee bed from over-extracting, which for Gesha is critical: the floral aromatics extract relatively quickly while the vanilla sweetness extracts at mid-range. Uneven extraction in a cone brewer would produce a simultaneously floral and bitter cup as the outer ring over-extracts while the center under-extracts. The 500μm grind is slightly coarser than the V60 recipe because the Kalita's flat bed compensates with contact time evenness, reducing the need for maximum surface area. Temperature at 92°C and a 3:00–4:00 window are conservative and appropriate for preserving the delicate aromatics this Huila Gesha at medium-light has to offer.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C. The Kalita's even extraction advantage doesn't fully compensate for under-extraction if grind is too coarse. Gesha's citrus character — citric acid from the high-altitude Huila terroir — will dominate until the vanilla Maillard compounds dissolve alongside it.
thin: Add 1g coffee or reduce water by 15g. The Kalita's wave filter passes slightly more oils than a V60 paper, but Gesha is still a variety where body is low by nature. If the cup reads watery rather than delicately tea-like, dose correction is appropriate before assuming the brewer is at fault.
The Chemex scores 85/100 here — good, but below the V60 and Kalita — because its thick filter extracts too much body from a variety that already runs light. Gesha's Ethiopian landrace genetics produce a tea-like mouthfeel profile; the Chemex's bonded paper compounds this by removing the oils that would normally moderate the mouthfeel thinness. That said, the filter creates exceptional aromatic clarity, and the vanilla and citrus notes read with maximum definition in a Chemex cup. The 520μm grind (30μm finer than Chemex default) and 92°C temperature apply the same Gesha-specific adjustments as the V60 recipe. The 3:30–4:30 brew window accommodates the Chemex's slower flow rate. If you're using the Chemex specifically to prioritize aroma definition over body — treating this more like a tea than a coffee in terms of mouthfeel expectations — the result can be exceptional.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C. At 520μm and 92°C, the Gesha's citrus notes have a head start on the vanilla compounds. The Chemex's slow flow rate extends contact time, which helps, but if the grind is even slightly coarse, the vanilla and caramel Maillard products won't fully dissolve in the drawdown window.
thin: Add 1g coffee or reduce water by 15g; alternatively switch to a metal filter insert. The Chemex exacerbates Gesha's natural light body more than any other brewer. If body is a priority over aromatic clarity, a metal insert changes the character of this cup significantly — you gain mouthfeel at the cost of some clarity.
The Clever Dripper delivers 83/100 for this Gesha by combining immersion even-extraction with paper-filter clarity. The extended steep at 92°C allows the vanilla sweetness — which develops more slowly at this medium-light roast level than the quick-extracting acids — to dissolve fully before the drain opens. This matters for Gesha: the variety's flavor complexity depends on having both the floral and citrus character and the deeper vanilla/caramel character present simultaneously. Either alone reads incomplete. The immersion also reduces the technique sensitivity compared to the V60 — no pour technique needs to be managed, just a stable steep. The 500μm grind and 3:00–4:00 window mirror the Kalita recipe closely, appropriate given the similar extraction dynamics. At 92°C, the delicate aromatics remain in solution rather than escaping during the open steep.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C. Immersion extraction with a medium-light Gesha can still under-extract if the grind is too coarse or steep time too short. Citric brightness from the 1,850m Huila terroir will dominate. Extend steep by 30 seconds before touching grind if the timing was rushed.
thin: Add 1g coffee or reduce water by 15g. The Clever Dripper paper filter removes oils, compounding Gesha's inherently light body. Dose adjustment directly increases TDS. Alternatively, ensure the drain happens at the full 3:00 mark — early draining shortens extraction and reduces dissolved solids.
AeroPress reaches this Gesha at 83°C — the lowest temperature across all methods, reflecting two penalty points for medium-light roast and Gesha variety sensitivity. This is not a disadvantage here: Gesha's floral and vanilla aromatics are exceptionally temperature-sensitive, and the enclosed AeroPress chamber prevents aromatic escape during brewing in a way that an open V60 can't. At 83°C with pressure-assisted extraction, the vanilla notes come through cleanly because the roast-developed compounds responsible for them (formed at medium-light roast, not present at all in lighter roasts of the same variety) extract efficiently under pressure compensation. The 370μm grind is 30μm finer than default. The 1–2 minute brew time avoids over-extraction of the acidity while ensuring adequate dissolution. A bypass technique — brew at 1:6 and dilute with hot water to 1:12 — is worth exploring for maximizing aromatic expression.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C to 84°C. At 83°C, extraction is conservative enough that even a 1°C adjustment makes a noticeable difference for this Gesha. Sour at 83°C almost always means the vanilla compounds didn't have time to dissolve — finer grind accelerates this without the aromatic damage that higher temperatures carry.
thin: Add 1g coffee or reduce water by 15g. The AeroPress 1:12.8 ratio is already quite concentrated relative to pour-over methods. If TDS is low despite this, check that the 370μm grind is accurate — coarser grinds are the most common cause of thin shots at correct recipe parameters.
This medium-light Gesha scores 78/100 for espresso — functional but below the pour-over methods. The primary constraint is that medium-light Gesha's defining qualities (vanilla, citrus, floral) are delicate aromatic compounds that can be overwhelmed by the intensity of espresso extraction. At 9 bars of pressure, every flavor compound concentrates simultaneously, and the delicate floral character that defines Gesha competes with concentrated acidity and roast-developed compounds in a way that blurs the variety's distinctiveness. The recipe runs at 91°C (2°C below default), 220μm grind (30μm finer), and a fairly short ratio of 1:1.8. Since this is medium-light rather than fully light roast, the bean is slightly more soluble and doesn't require the extended preinfusion protocol that light-roast espresso demands. The vanilla note tends to read well in espresso due to concentration, even if the overall complexity is compressed.
Troubleshooting
sour: Grind finer by ~10μm and raise temp 1°C. Espresso extracts fast — under 35 seconds — and citric acid from this high-altitude Gesha extracts faster than anything else. For medium-light roast espresso, small grind adjustments (10μm) have larger impact at this fineness. Dial methodically rather than making large jumps.
thin: Increase dose by 1g or reduce yield by 15g. Medium-light Gesha has a fairly low output ratio here (1:1.8). If TDS still reads low, the 1,850m altitude density is resisting full extraction at this grind. Increasing dose within the basket is more reliable than grinding finer once you're already at 220μm.
Moka Pot scores 73/100 for this Gesha — the method can extract the vanilla and citrus notes, but the heat path from base chamber through grounds introduces thermal stress that this variety is particularly sensitive to. Gesha's characteristic aromatics are delicate enough that the slow heat buildup in a moka pot's pre-boil phase can partially degrade them before extraction begins — using pre-boiled water in the base chamber is critical here, more so than with more robust varieties like Bourbon. The 320μm grind at 98°C (2°C below standard) applies the same variety-specific temperature reduction. The concentrated output at 1:9.8 ratio means the vanilla comes through intensely, but the floral character that distinguishes Gesha from other washed Colombian coffees may be partially obscured by the concentration and thermal treatment. This is a workable cup, but not where this Gesha performs best.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C. The moka pot's thermal path can under-extract Gesha if the water moves through too quickly at a coarse setting. Sourness here is citric acidity from the 1,850m Huila terroir without the vanilla Maillard compounds following. Finer grind slows flow and deepens extraction.
thin: Add 1g coffee or reduce water by 15g. Moka pot output is concentrated by design, so thin reads as under-extraction rather than just low ratio. For this Gesha, check that 320μm is accurate — too coarse a grind for moka pot produces thin and sour simultaneously.
strong: Reduce dose by 1g or add 15g water. Gesha's vanilla character can read as cloying or harsh when over-concentrated under moka pot pressure. Diluting slightly with hot water opens the cup and lets the citrus note emerge alongside vanilla rather than being buried by it.
French Press scores 70/100 for this Gesha because the metal filter's oil passage creates a mouthfeel that competes with — rather than complements — the variety's natural aromatic profile. Gesha produces tea-like, light-bodied cups; the French press adds lipid-based texture that works against this. The unfiltered oils also carry compounds that can partially mask the delicate floral character. The 970μm grind and 4:00–8:00 immersion window are standard for French press. At 94°C, the vanilla notes from the medium-light development extract during the middle of the steep. The cup is drinkable but doesn't represent this Gesha at its best — the profile is muted compared to what a V60 or Kalita delivers.
Troubleshooting
sour: Grind finer by ~22μm and raise temp 1°C. French press extraction relies entirely on immersion time and temperature — at 970μm, extraction is slow. If steep time was 4 minutes (not 6–8), the vanilla and citrus balance hasn't been reached yet. Extending steep time is a valid alternative to finer grind for French press.
thin: Add 1g coffee or reduce water by 15g. French press oil passage normally helps body, but Gesha is naturally so light-bodied that even with unfiltered oils the cup can read thin. This is partly character-typical for the variety. Increasing dose is the most direct correction.
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.