Ecuador El Dorado Wush Wush

The 91°C temperature is 3°C below the standard pour-over default — the anaerobic processing accounts for most of that reduction, with Gesha's delicate aromatic profile contributing the final degree. These aren't conservative hedges; they reflect real aromatic sensitivity. The volatile fruit compounds responsible for the passionfruit and strawberry character from anaerobic fermentation are temperature-sensitive and degrade at elevated brewing temperatures. The 435μm grind is 65μm finer than standard V60 defaults — Gesha's low extraction solubility requires finer grinding to compensate without relying on higher temperature. The V60 paper filter is the right call here: this light-roast Gesha has high residual density, and paper filtration keeps the cup transparent enough to show the fruit-forward notes without oil interference clouding the botanical delicacy.

The Kalita Wave at 91°C and 465μm is 10μm coarser than the V60 at 435μm — the flat-bottom geometry's superior extraction evenness compensates for the coarser grind. Where the V60 concentrates extraction in the center of the conical bed, the Kalita forces water through the entire flat surface area, improving contact uniformity. For this anaerobic Gesha, that uniformity matters: the fermentation-derived aromatics (passionfruit, strawberry) and Gesha's native floral compounds (white gummy bear botanical character) have different extraction rates. Uniform water distribution reduces the risk that one fraction extracts while another bypasses. The 16.0–17.0 ratio is slightly longer than the V60's 15.0–16.0, appropriate for the Kalita's design where slightly more water helps maintain bed saturation without channeling through the flat filter.

AeroPress for this anaerobic Gesha runs at 91°C — matching the pour-over methods rather than the typical AeroPress default of 85°C. The anaerobic processing and Gesha's heat sensitivity both push temperature down, but the AeroPress compensates upward to ensure adequate extraction from this low-solubility light roast under its compressed brew window. At 335μm grind — the finest non-espresso setting for this bean — the increased surface area maximizes extraction during the short 1-2 minute contact time. Gesha's delicate florals extract more efficiently under the gentle pressure of the AeroPress plunger than under pure gravity flow at the same temperature, because pressure forces water through the fine fraction uniformly rather than letting fines clog and channel. The result is an intensely concentrated expression of the passionfruit and strawberry ester character at higher TDS than any pour-over delivers.

The Clever Dripper's hybrid mechanics — full immersion at 91°C for 3-4 minutes before paper-filtered drain — offer this anaerobic Gesha something that neither pure pour-over nor pure immersion does alone. Immersion steeping at 91°C allows the volatile esters from anaerobic fermentation (passionfruit, strawberry) to dissolve into the water body without the flow-rate variability that pour-over introduces, reducing channeling risk that would otherwise create uneven extraction in this low-solubility light roast. Then the paper filter at drain catches the oils and passes only the brewed liquid, preserving the ester profile without oil interference. The 465μm grind matches the Kalita Wave, appropriate since the immersion phase compensates for the coarser particle size by providing extended contact time before the gravity drain.

This anaerobic Gesha at espresso is the most technically demanding configuration and the 70/100 match score reflects real risk. Light roast espresso adjustments combine with anaerobic processing considerations — both pushing toward longer ratios and lower temperatures. The 45g output (1:1.9-2.9 ratio) is more restrained than typical specialty espresso ratios approaching 1:2.5-3.0, reflecting that Gesha's low extraction solubility plus light roast means thin, under-extracted shots are the primary failure mode. At 185μm grind and 91°C, the fermentation-derived fermentation-derived aromatics that produce the passionfruit and strawberry character extract under pressure into a highly concentrated format — but they're fragile, and the high pressure combined with any channeling will create uneven ester extraction. Preinfusion is essential: it saturates the dense light-roast puck before full pressure hits.

Moka Pot at 61/100 for this anaerobic Gesha from Loja, Ecuador represents a significant compromise. The 91°C temperature (down 9°C from standard moka 100°C baseline, lowered to protect the fragile anaerobic fermentation compounds) is the most important protection available, but moka's uncontrolled heat application makes this target difficult to achieve consistently without pre-boiled water in the base chamber. The volatile fermentation-derived aromatics from the oxygen-deprived fermentation — responsible for the passionfruit and strawberry character — are thermally fragile; even brief overheating during the moka pot's slow heating phase degrades them. The 285μm grind is medium-fine and appropriate for moka's ~1.5 bar pressure. What survives extraction is the concentrated structure of the light roast — brightness and a stripped-down version of the botanical floral character — but the specific fermentation-derived complexity largely doesn't make it through.

French Press scores 57/100 for this anaerobic Wush Wush because the mismatch is fundamental: metal filtration lets through the oils that this delicate aromatic variety cannot survive. The botanical, passionfruit, and white gummy bear character — which are volatile compounds at low concentrations — are easily masked by oil-carried heavier molecules in an unfiltered cup. The 91°C brew temperature (5°C below standard French Press default, lowered to protect fragile anaerobic fermentation compounds and the delicate aromatic variety) does protect the most fragile volatiles from thermal degradation, but the metal filter negates the benefit by introducing oil interference. The 935μm coarse grind limits fines at the coarse end. In a French Press steep at 91°C for 4–8 minutes, any excessive fines would over-extract aggressively and produce bitterness, so keeping the grind coarse is important here.