Sipi Falls, Double Honey Anaerobic Natural

For SL28 — a variety bred for Kenya's volcanic soils and characterized by exceptional cup quality — the V60's technique-dependent flow control allows a skilled brewer to emphasize what SL28 does best: complex acidity and clean sweetness. The 415μm grind is slightly coarser than the Chemex equivalent to account for the V60's faster base flow rate. At 2,100m on Mt Elgon's volcanic slopes, this bean has high soluble density and the aldehyde-dominant volatile profile that altitude research associates with elevated diurnal temperature differential. The paper filter resolves the anaerobic processing oils from the cup, leaving the orange marmalade character as aromatic brightness rather than fruity heaviness. Bloom thoroughly — 2x the coffee weight — to degas CO2 from this light-roasted, freshly ground SL28 before extraction begins.

The Kalita Wave's flat-bed extraction is an advantage for SL28 because this variety produces large beans with higher-than-average density that extract more slowly than smaller-bean, lower-altitude varieties. An uneven bed — more likely in a conical dripper with large beans — creates fast-channeling zones where water bypasses under-extracted particles. The flat bottom equalizes that risk. With anaerobic natural processing adding fermentation-derived sweetness compounds (the maple syrup and honey character emerge from fermentation-derived compounds alongside caramelization products), the paper filter prevents those compounds from being diluted by oil passthrough. The 445μm grind sits between the V60 and Chemex because the flat bed's slightly longer contact time compensates for the medium particle size without risking over-extraction of SL28's delicate high-altitude character.

The AeroPress for this Sipi Falls SL28 is set at 92°C — identical to the pour-over methods rather than the traditional lower AeroPress temperature recommendation — because light-roasted SL28 at 2,100m altitude requires more thermal energy to extract adequately. The AeroPress's paper filter (metal filter is an option but not recommended for this bean) handles the anaerobic natural's oils, preserving the orange marmalade aroma as clarity rather than oily texture. At 315μm, the grind is significantly finer than pour-over to compensate for the short 1:00-2:00 steep — rapid extraction demands more surface area. The concentrated 1:12-1:13 ratio is inherent to AeroPress design and works well for SL28's high-quality, complex flavor profile: at this concentration, the honey and maple syrup sweetness compound rather than dilute.

The Clever Dripper pairs well with this anaerobic SL28 because full immersion gives the complex fermentation-derived compounds — lactic acid metabolites, orange aromatics, caramellic sweetness compounds — time to dissolve evenly into solution rather than relying on water passing through them under gravity. SL28 produces large beans that benefit from extended contact: the 3:00-4:00 steep at 92°C allows the interior of each particle to fully equilibrate before draw-down begins, reducing the sour-outside-sweet-inside extraction gradient. The paper filter then cleanly resolves the natural process oils before the cup reaches the drinker. At 445μm, the grind targets a medium-coarse particle that won't slow the valve-open drawdown excessively or allow the steep time to extend into over-extraction territory.

SL28 at light roast from 2,100m altitude is an ambitious espresso. The 73/100 match score reflects real limitations: this variety's exceptional cup quality is expressed through clarity and complex acidity, neither of which espresso's concentration and oil passthrough enhance. The recipe compensates with a longer ratio (1:2.4 at the center of the 1:1.9-1:2.9 range) and slightly elevated temperature at 92°C to push through SL28's low-solubility light roast. Expect orange marmalade brightness rather than caramel sweetness — espresso concentration amplifies the citric-acid character from the anaerobic fermentation's orange aromatics rather than the maple syrup sweetness. This is a fruit-acid-forward shot that works well as a long black or Americano where dilution restores the flavor balance.

The Moka Pot at 44/100 for this SL28 anaerobic natural faces a dual extraction problem. SL28 beans are large and dense — selected at Scott Labs for high cup quality, which correlates with dense, slow-extracting beans — and light roasting compounds the solubility challenge. The moka pot's ~1.5 bar pressure cannot efficiently force water through a dense SL28 bed, especially at the 265μm grind required to maintain any flow control. Metal mesh filtration then passes the anaerobic processing's oils into the cup, where they compete with rather than clarify the orange marmalade character. Temperature of 92°C (effective post-adjustment) is reasonable, but the fundamental mismatch between this variety's high-quality attributes and the moka pot's extraction mechanism means paper-filtered methods will serve SL28's character better.

French Press rates 40/100 for this SL28 anaerobic natural for reasons directly tied to the variety and processing combination. SL28's large, dense beans produce relatively fewer fines when ground compared to Ethiopian heirlooms — an advantage in French Press, where fines seep through the metal mesh and muddy the cup. But the anaerobic natural processing's volatile aromatic compounds (the orange marmalade, maple syrup character) are fragile aromatics that fare better under paper filtration than open metal mesh, where oils pass through and coat the palate. The long steep (4:00-8:00 at 92°C with 915μm grind) is the only way to coax adequate extraction from this light-roasted, high-altitude bean via immersion. Hoffmann's method — letting grounds settle post-plunge for 5-8 additional minutes — is especially valuable here for clarity.