Blue Bottle Coffee · Night Light Decaf

Fri, Jul 24, 2026, 6:41 PM (Shot 91)

DoppioFastNormalDay 16 · Still excellent

Shot

Grind Setting41

Dose18.8g

Grinder Retention0.2g

Adjusted dose 18.6g

WDT UsedYes

Distribution ToolYes

Spring Weight30 lbs

Pre-infusion6s

FlowOne spout dominant

Shot Time24s

Stopped at33.0g (+9g drip)

Yield42g

Ratio 1:2.261.75 g/sFastNormal

Target

Espresso · Normale

Aiming for Espresso (37.2g, 25–30s) — +4.8g off, ran fast — closer to Normale.

Taste

Balance

SourBalancedBitter

Shot Rating

★★★★★

Notes

Flow started evenly across both spouts at 10 seconds. Mid way through the shot the right spout started to wobble and eventually stopped indicating late channeling that accelerated the flow on the other spout. Taste was strong but balanced with the bitter taste resolving quickly.

Drink

DrinkFlat White

Milkwhole

Milk Quantity80ml

Foam10ml

Overall Rating

★★★★★

Latte Art

Pollock

No latte art. Taste is slightly bitter and probably the bean profile

Analysis

✦

AI Analysis

Good Shot

Summary

Shot 91 on Night Light Decaf bag 21, shot 3 on this bag. Grind 41, adjusted dose 18.6g, 42g yield, 24 seconds — Fast time with a Normal ratio. Balance landed at 4 (balanced) with a 4-star quality rating despite a right-spout wobble mid-shot indicating late channeling. Taste was strong and balanced with quick-resolving bitterness, which is a solid result given the ongoing puck prep challenge with this bean.

What the Numbers Say

Time at 24s is Fast. Ratio at 2.26 is Normal. The right-side mid-shot wobble is the third consecutive shot on this bag with a right-side flow anomaly — the pattern is now consistent across all three pulls. The 9g lag is within your known Bambino range. Yield ran 4.8g over your Espresso target (37.2g), and time came in under the 25–30s target window — but the taste result (balance 4, 4 stars) suggests the extraction was actually solid despite the fast time and high yield, likely because the late-stage channeling accelerated flow without fully wrecking the cup.

The One Thing to Change

Hold grind 41 — the extraction is there. For the next shot, slow down your WDT and make deliberate contact with the right edge of the puck, completing 2–3 passes in that quadrant before moving to center. This is the sole remaining variable.

All three shots on this bag have shown right-side flow disruption — shot 1 at 39.5 (drip-and-slow right), shot 2 at 42 (right-side channel then recovery), this shot (right wobble mid-shot). Grind 41 produced balanced taste with quick-resolving bitterness, so the grind is working. The recurring right-side issue is a puck prep distribution problem, not grind. Fix the WDT before adjusting anything else.

Bean Context

Night Light Decaf is a Swiss Water medium roast, which extracts readily — grind 41 is landing in a workable range. At 16 days since roast it's in peak window, so freshness isn't a factor. The 'strong but balanced with quick-resolving bitterness' taste description aligns with the crème brûlée/vanilla profile — that's the bean, not over-extraction. The key lime brightness may show up more clearly once channeling is eliminated and you get an even extraction.

Progress

Balance 4 and 4 stars is a real step forward from the bitter shot 1 and the complex-but-unresolved shot 2. The right-side channel is the only remaining obstacle — grind is no longer the variable to chase.

Cached · Jul 24

Bean

RoasterBlue Bottle Coffee

BeanNight Light Decaf

Days Since Roast16 days — Still excellent

Roast Date2026-07-08