Metric · Decaf Huila Pink Bourbon

Wed, Jun 3, 2026, 11:06 PM (Shot 35)

DoppioNormalNormalDay 16 · Still excellent

Shot

Grind Setting28

Dose18.1g

Grinder Retention0g

Adjusted dose 18.1g

WDT UsedYes

Distribution ToolYes

Spring Weight30 lbs

FlowNormal

Shot Time25s

Stopped at33.0g (+8g drip)

Yield41g

Ratio 1:2.271.64 g/sNormalNormal

Taste

Balance

SourSourBitter

Shot Rating

★★★★★

Notes

Flow was even but fast. Taste was sour and lingering indicating under extraction. Could aging beans require a finer grind?

Drink

DrinkFlat White

Milkwhole

Milk Quantity140ml

Foam0ml

Overall Rating

★★★★★

Using sweetened chai concentrate balanced out the sour taste.

Analysis

✦

AI Analysis

Needs Work

Summary

Shot 39 on the Decaf Huila: grind 28, 25s, balance 2, 3 stars. Time is at the bottom edge of Normal but the flow was described as fast and the sourness lingered — Diego's own note calls it under-extracted. This contradicts the previous shot 38 (same grind, 27s, balance 3, 4 stars, best shot on the bag), making this a regression worth investigating.

What the Numbers Say

Time and ratio are both Normal by your thresholds. But the taste tells a different story — lingering sourness at balance 2 is a meaningful step back from the balance 3, clean-fading result at the same grind two days ago. The 8g drip lag is normal for the Bambino. The question is why the same grind produced a worse result.

The One Thing to Change

Go one click finer to grind 27.5, keeping dose at 18g and targeting 36–38g yield (stop the shot earlier than you did here).

Two things are working against you: the shot ran 2 seconds faster than your best pull on this bag, and the yield crept up to 41g — that's a longer, more dilute pull on a faster shot, which compounds under-extraction. But before blaming grind alone, check your puck prep. Diego's note asks whether aging beans need a finer grind — not necessarily. At 16 days on an EA Washed decaf, the bean is still solidly in peak window. More likely culprit is a slightly inconsistent tamp or WDT pass producing faster flow. Try 27.5 and consciously stop the shot at 37g. If flow is still fast and sourness lingers, go to 27.

Bean Context

At 16 days post-roast, this EA Washed decaf is in its peak window — freshness isn't the issue. The bean's inherent brightness means some quick-fade acidity is normal character, but lingering sourness is a real extraction flag on this one. Your best shot (shot 38, grind 28, 27s, balance 3) showed this bean is capable — the regression here is likely procedural or yield-related rather than a bean freshness problem. The bag note holds: grind 28 can work, but yield discipline matters.

Progress

Shot 38 was your best pull on this bag — don't abandon grind 28 permanently based on one regression. Check yield control first; you've been running long on this bean and it's costing you.

Cached · Jun 3

Bean

RoasterMetric

BeanDecaf Huila Pink Bourbon

Days Since Roast16 days — Still excellent

Roast Date2026-05-18