Proud Mary Coffee

GUATEMALA | Las Moritas | Pacamara | Washed

guatemala medium-light roast washed red_pacamara
blackcurrantcitrusbaking spice

Pacamara is already an outlier among Guatemalan varieties — a cross between Pacas and Maragogipe, grown for its large bean size and layered acidity. But the altitude here adds another wrinkle. At 1,500 meters, this lot sits below Guatemala's typical specialty range of 1,650–1,800 meters, and that gap matters chemically. Higher altitude slows cherry maturation from six to eight months up to nine to eleven — more time for the plant to accumulate sugars, organic acids, and volatile precursors in the seed. At 1,500 meters, that window is shorter, and altitude explains roughly 25% of variation in extraction yield. You're working with a slightly less concentrated soluble load than a higher-grown Guatemalan would offer. Washed processing strips away the fruit mucilage, so what reaches your grinder is almost entirely a product of the variety and the growing conditions at Las Moritas — not fermentation-derived fruit esters. The blackcurrant and citrus notes both trace to the acid chemistry the bean accumulated during maturation. Citric acid is the only organic acid in coffee that consistently exceeds its sensory detection threshold in the cup, and it drives the bright, currant-like character here. Baking spice comes from Maillard products developed during roasting — amino acids and reducing sugars browning into hundreds of volatile compounds. Medium-light roasting is the right call for this profile. It takes the development just far enough past first crack to resolve the vegetal chlorogenic acid bitterness while preserving the citric and malic acids that give Pacamara its fruit-forward brightness. Push darker and those pleasant acids degrade, leaving quinic acid — the bitter, astringent compound that accumulates as chlorogenics decompose. Pacamara's large bean size and Maragogipe parentage mean density is typically lower than Bourbon or Caturra, which affects grinding behavior. Expect slightly faster water penetration than a high-grown Central American washed.
Hario V60-02 88/100
Grind: 480μm Temp: 93°C Ratio: 1:15.3-1:16.3 Time: 2:30-3:30

The recipe trims temperature 1°C to 93°C and grinds 20μm finer than the V60 default, both driven by medium-light roast behavior. Medium-light roast leaves more chlorogenic acid intact than darker profiles — these CGAs extract in the fast phase and read as sourness if extraction runs shallow. Dropping temperature slightly slows the extraction rate at the surface, giving the middle-phase caramel and sweet compounds time to catch up rather than letting citric and malic acids dominate alone. The slightly tighter 1:15.3–16.3 ratio reflects the medium-light roast's need for more concentrated extraction. The V60's conical geometry and medium-fine grind let Las Moritas' blackcurrant and citrus brightness come through cleanly, with paper filtration keeping oil compounds out of the cup so acidity is perceived as crisp rather than heavy.

Troubleshooting
sour: Grind finer by ~22μm and raise temp to 94°C. Pacamara's lower-density bean structure at 1,500 meters passes water fast — if the shot pulls in under 2:30, acids extract before the caramel and sweet compounds follow. Finer grind slows flow and deepens extraction.
thin: Add 1g dose or reduce water by 15g. The medium-light roast has lower available solubles than a darker profile, and the washed processing doesn't add mucilage body. Tighter ratio raises TDS directly. A metal filter would also add mouthfeel oils stripped by paper.
Kalita Wave 185 88/100
Grind: 510μm Temp: 93°C Ratio: 1:16.3-1:17.3 Time: 3:00-4:00

The Kalita recipe mirrors the V60 adjustments — 1°C cooler than default and 20μm finer — for the same medium-light roast logic. What the Kalita adds is a flat-bed geometry that distributes water contact more evenly than the conical V60. For a Pacamara whose lower bean density creates faster water penetration and uneven flow risk, the three drain holes and wave filter design help enforce more uniform bed saturation. Evenness of extraction matters more for this bean than for a high-altitude washed with dense beans: uneven flow at lower soluble concentration amplifies the sour-sweet imbalance when some grounds underextract. The slightly coarser grind at 510μm compared to the V60's 480μm still sits below the Kalita's typical default, keeping extraction deep enough to bring through the blackcurrant and baking spice notes without letting the lighter roast's residual CGAs dominate.

Troubleshooting
sour: Grind finer by ~22μm and raise temp to 94°C. If the wave filter collapses against the walls from too-coarse a grind or aggressive pouring, you lose the flat-bed advantage and water channels fast. Finer grind restores bed resistance; keep pours away from filter walls.
thin: Add 1g dose or reduce water by 15g. The washed processing strips the mucilage layer that contributes body in honey or natural lots — what you get from Las Moritas is variety and altitude expression only. Dose adjustment directly raises TDS; a metal filter alternative would restore some oil-derived mouthfeel.
Chemex 6-Cup 86/100
Grind: 530μm Temp: 93°C Ratio: 1:15.3-1:16.3 Time: 3:30-4:30

The Chemex recipe shifts temperature down 1°C and grinds 20μm finer than the Chemex default, for the same medium-light roast logic that applies across all brewers here — more CGAs intact means sour risk if extraction is too shallow or too fast. The Chemex's thicker proprietary paper filter is the defining variable: it removes 20–30% more oils than a standard V60 paper, producing a cup that is more tea-like and distinctly cleaner than any other brewing method. For a washed Pacamara whose character comes from bright acidity and baking spice Maillard notes rather than body, that filter transparency is an asset. The cleaned baseline lets the blackcurrant quality register as clean brightness, not muddied by oils. The 1:15.3–16.3 ratio is slightly tighter than a typical Chemex default, counteracting the bean's lower soluble density from its 1,500-meter altitude.

Troubleshooting
sour: Grind finer by ~22μm and raise temp to 94°C. The Chemex's thick filter slows drawdown, but if the grind is too coarse, water channels past grounds too quickly. Pacamara's low density accelerates this. Finer grind creates more resistance and contact time to push past the acid-only extraction zone.
thin: Add 1g dose or reduce water by 15g. At 1,500 meters, Las Moritas has a shorter maturation window than a higher Guatemalan lot, meaning fewer solubles available per gram. The Chemex's paper also strips oils. Tightening ratio is the primary lever; a metal filter is not practical here given the brewer design.
AeroPress 85/100
Grind: 380μm Temp: 84°C Ratio: 1:12.3-1:13.3 Time: 1:00-2:00

The AeroPress recipe for Las Moritas runs at 84°C — well below the standard 93–95°C range used for filter coffee — and grinds 20μm finer than the AeroPress default. The lower temperature is both an AeroPress convention and a medium-light roast response: at fine grind sizes and high pressure, hot water over-extracts faster than any other brew method. The Pacamara variety's Maragogipe parentage brings lower bean density than a Bourbon or Caturra, and the bean's open cell structure extracts quickly even at fine settings. Running 84°C keeps the extraction from blowing past the blackcurrant and citrus sweet spot into overextracted bitterness. The compressed 1:12–13 ratio produces a concentrated cup that can amplify the bright acidity from citric and malic acids the washed processing preserved; at this ratio the baking spice Maillard notes are detectable rather than buried by dilution.

Troubleshooting
sour: Grind finer by ~22μm and raise temp to 85°C. At 84°C and coarser settings, medium-light roast Pacamara can stall at early-phase acid extraction. The fine grind ceiling is high in AeroPress — go finer before raising temperature, as pressure amplifies temperature effects at fine settings.
thin: Add 1g dose or reduce water by 15g. The 1:12–13 ratio is already relatively concentrated, but the washed processing and 1,500-meter altitude mean limited available solubles. Adding dose is more effective than tightening ratio further; a metal AeroPress filter would also restore cafestol-containing oils that paper removes.
Clever Dripper 85/100
Grind: 510μm Temp: 93°C Ratio: 1:15.3-1:16.3 Time: 3:00-4:00

The Clever Dripper occupies a hybrid position: it brews like French press (full immersion, no flow during steeping) but drains through a paper filter. For Las Moritas, this means the extraction behaves like immersion — longer, more uniform contact between water and grounds — while the paper filter removes oils and fines, delivering the bright, clean acidity the washed processing and citric-acid character favor. The recipe drops temperature 1°C to 93°C and grinds 20μm finer than the Clever default, same as other brewers, addressing medium-light roast CGA extraction risk. The immersion phase helps compensate for Pacamara's lower-density bean structure: unlike V60 or Chemex where water drains by gravity continuously, the Clever's immersion ensures all grounds are saturated before any water leaves the bed, reducing the channeling risk that the bean's open structure creates in gravity-flow methods.

Troubleshooting
sour: Grind finer by ~22μm and raise temp to 94°C. The Clever's immersion phase should protect against underextraction more than gravity-flow methods, but medium-light roast Pacamara still has meaningful CGA levels. If steep time is under 3 minutes, extend to 3:30 before adjusting grind.
thin: Add 1g dose or reduce water by 15g. The paper filter removes the oil mouthfeel contribution that French press provides, so the Clever Dripper cup relies more on dissolved solids for body. At 1,500 meters this bean has a lower soluble ceiling than higher-grown Guatemalans. Dose is the first adjustment.
Espresso 83/100
Grind: 230μm Temp: 92°C Ratio: 1:1.3-1:2.3 Time: 0:25-0:30

Espresso is the highest-risk method for Las Moritas — pressure extraction at 9 bar amplifies every flavor compound proportionally, and a medium-light roast Pacamara with washed processing brings a high-citric, acid-forward profile that can read as aggressive sourness if extraction runs short. The recipe drops temperature 1°C to 92°C and grinds 20μm finer than the espresso default. At the 1:1.7 output ratio (19g in, 33g out), the blackcurrant and citrus from citric and malic acids concentrate dramatically — at this ratio, citric acid's sensory impact is multiplied far beyond filter coffee thresholds. The medium-light development means baking spice and caramel Maillard notes are less dominant than they'd be at medium roast, so the espresso profile leans bright and fruit-forward. Preinfusion at low pressure for 3-6 seconds before ramping to full 9 bar helps prevent channeling through Pacamara's lower-density puck.

Troubleshooting
sour: Grind finer by ~10μm and raise temp to 93°C. At espresso pressures, a medium-light washed Pacamara pulls sour fast — the early-extracting citric and malic acids dominate before the shot reaches full yield. Incremental grind adjustments of 10μm are appropriate at espresso; larger steps overshoot easily.
thin: Add 1g dose or reduce output water by 15g. A thin espresso from this bean usually means too-long a shot rather than too-short — overextraction with high water volume drops TDS. Pull tighter output ratio first; check that shot time stays in 25–30 seconds.
Moka Pot 81/100
Grind: 330μm Temp: 99°C Ratio: 1:9.3-1:10.3 Time: 4:00-5:00

Moka pot operates at roughly 1.5 bar — far below espresso pressure but well above atmospheric — and produces a concentrated, intense brew that is the highest-TDS method most home brewers own besides espresso. For Las Moritas, the recipe drops temperature 1°C by reducing the boiler water temperature (achievable by using slightly cooler pre-boiled water) and grinds 20μm finer than the moka pot default. The medium-fine grind at 330μm creates enough resistance to slow the pressure-driven flow through the basket, building extraction time that a washed Pacamara with its lower soluble density needs to reach through the acid-only early phase into the Maillard compounds. The concentrated output at 1:9.3–10.3 means blackcurrant and citrus flavors are intense — this is not a delicate cup. Baking spice reads clearly at this concentration. Use pre-boiled water and remove from heat at first sputter to avoid bitter scorching.

Troubleshooting
sour: Grind finer by ~22μm and raise temp slightly by using hotter pre-boiled water. Moka pot sourness in a medium-light washed Pacamara usually means the flow is too fast — pressure pushes water through the basket before the middle-phase sweet compounds extract. Finer grind adds resistance and contact time.
strong: Reduce dose by 1g or increase boiler water by 15g. At moka pot's 1:9–10 ratio the cup is already highly concentrated. If it tastes harsh, you may be extracting into over-strength territory where bitter compounds from the dry distillate phase accumulate. Adding water before brewing dilutes output strength.
French Press 79/100
Grind: 980μm Temp: 95°C Ratio: 1:14.3-1:15.3 Time: 4:00-8:00

French press is ranked lowest among immersion methods for Las Moritas, and the recipe reflects the bean's fit: temperature drops 1°C to 95°C (from a typical 96°C) and grind runs 20μm finer than the French press default. The concern with this bean in a press pot is the combination of unfiltered extraction and Pacamara's lower soluble density. French press relies on immersion without a paper filter — cafestol, kahweol, and insoluble solids remain in the cup, adding body the bean's washed processing alone wouldn't deliver. That unfiltered body works in the cup here, but the mouthfeel is harder to control than in a pour-over. The coarse grind still sits finer than typical French press defaults due to the medium-light roast adjustment. Hoffmann's extended wait of five to eight minutes after pressing lets grounds settle fully, producing the cleanest achievable French press cup — important for letting Las Moritas' citrus and currant notes read distinctly.

Troubleshooting
sour: Grind finer by ~22μm and raise temp to 96°C. French press immersion at coarse grind is the most forgiving method but also the easiest to underextract at medium-light roast — more CGAs remain intact than darker profiles and they dominate when extraction is shallow. Finer grind increases surface exposure during the steep.
thin: Add 1g dose or reduce water by 15g. French press already contributes oils that paper-filtered methods remove, so this bean shouldn't taste thin in a healthy brew. If it does, the issue is low TDS from the medium-light roast's limited soluble load. Dose adjustment is more effective than ratio change at coarse grind.
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.