POURS

3

牙买加蓝山一号

Designed for: 黑巧克力 · 坚果

蓝山一号 · 牙买加

First brew estimate — rate it to improve

Washed · Dark

Pour Sequence · 3 Pours

Extraction Strategy

Body-focused extraction

Natural process and chocolate or nutty notes drive a body-first strategy. Higher agitation and spiral pours build texture and mouthfeel as the primary extraction target — clarity is secondary.

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 140ml of hot water directly onto 85g of ice. The pour targets 38% 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.

Body-forward extraction

Dense high-altitude beans

Direct extraction

Active agitation

Grind · 62

Coarse grind — fast flow, controlled extraction

Looks like raw cane sugar crystals or cracked pepper. Derived from Stage 1 range 60–72. Density correction: -4 (finer) for dense bean. Keeps extraction within range. History pattern: -2. Minor — does not override bean constraints.

Bloom · 37s

Short bloom — low CO₂, fast saturation

37s base — derived from bean density and process. Insufficient bloom causes channelling across all subsequent pours.

Temp · 89→85°C

Descending curve — 4°C drop across pours

Starts at 89°C — upper bound of Stage 1 range. Descends 2°C per pour as solubles concentration drops.

Pour Structure · 3 Pours

Three-pour structure — direct extraction

Dark roast targets F1 range 3. Bean density (dense) favours more pours.

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.