POURS

3

Single Origin Ethiopia

Designed for: Floral · Orange

Puff Coffee · Ethiopia

Natural · Medium

Pour Sequence · 3 Pours

Extraction Strategy

Aromatic preservation

Fruity, floral, or tropical notes contain volatile aromatic compounds that evaporate under excess heat or agitation. Lower RPM, controlled temperature descent, and circular pours were chosen specifically to protect these characteristics through the full extraction.

Bean Character

Dense bean — elevated growing altitude

High cell-wall resistance limits water penetration — grind -4 from roast baseline. Bloom and temperature offset upward to compensate. Reduces uneven saturation risk across the bed.

Engine Calibration

Brew Method · Drip on Ice

Concentrated brew — ice restores balance as it melts

Brewing 160ml of hot water directly onto 65g of ice. The pour targets 29% above equivalent hot-serve concentration — ice melts into the cup and dilutes the brew to its correct strength. Grind is tuned finer than a hot extraction at this ratio: ice melt reduces extraction efficiency, so the recipe pre-compensates with increased surface area.

Aromatic preservation

Dense high-altitude beans

Layered extraction

Even saturation

Grind · 53

Medium grind — balanced flow and contact

Looks like coarse sea salt. Derived from Stage 1 range 53–61. Natural offset: +6 (coarser), density -4. Limits over-extraction of process compounds. History pattern: -2. Minor — does not override bean constraints.

Bloom · 39s

Short bloom — low CO₂, fast saturation

39s base — derived from bean density and process. Insufficient bloom causes channelling across all subsequent pours.

Temp · 88→88°C

Near-isothermal extraction

Starts at 88°C — upper bound of Stage 1 range. Descends 0°C per pour as solubles concentration drops. Natural ceiling: 92°C. Hard constraint — range clipped at upper bound.

Pour Structure · 3 Pours

Three-pour structure — direct extraction

Medium roast targets F1 range 4. Bean density (dense) favours more pours. Natural process: anchors structure at 4 pours. Flat filter geometry: +1 pour for even bed coverage.

Learning · From Your History

Calibrated from your brewing history

Grind shifted finer by 2. Pattern was weak but consistent across recent brews. Minor adjustment applied. Effect is limited and does not override bean constraints.