4 Letter Word · Colombia Sidra de Luz

Sun, Sep 20, 2026, 1:36 PM (Shot 169)

RistrettoFastRistrettoDay 24 · Peak window

Shot

Grind Setting38
Dose18.8g
Grinder Retention0.1g
Adjusted dose 18.7g
PortafilterBottomless
WDT UsedYes
Distribution ToolYes
Spring Weight30 lbs
Pre-infusion8s
FlowNormal
Shot Time22s
Stopped at18.5g (+8g drip)
Yield26.5g
Ratio 1:1.421.20 g/sFastRistretto

Target

Ristretto

Landed in the Ristretto target.

10g20g30g40g10s15s20s25s30s35s(22s, 26.5g)

Taste

Balance

SourSlightly SourBitter

Shot Rating

Notes

First shot with a naked portafilter ever. The puck prep was different given the angle of the handle. Flow started from the borders in and formed a few streams before merging into a single stream at the center. Minor splashing (not noticeable at the moment but a few drops around the machine). Taste is bright that slightly lingers.

Drink

DrinkFlat White
Milkwhole
Milk Quantity70ml
Foam15ml

Overall Rating

Latte Art

Picasso

Milk removed all sour notes, but left a slight bitter aftertaste that lingers. Good balance and rich coffee/chocolate flavor. Latte art was meh but the last pour was nice resulting in a hart

Analysis

AI Analysis

Good Shot

Summary

Shot 5 on the Sidra de Luz — your first naked portafilter pull ever. Ristretto target hit: 22 seconds, 26.5g yield on 18.7g adjusted dose (ratio 1.42). Balance 3, slight linger. The naked PF showed borders-to-center stream merge — that's the healthy extraction pattern we flagged as the target diagnostic on naked pulls.

What the Numbers Say

Time is Fast (22s), which on this bean at this grind has been normal — shots 2 and 3 both ran 27–31s at grind 38, so this is slightly quicker than prior pulls. Ratio 1.42 reads Ristretto, just a hair under the short threshold. Flow on the naked PF looked clean: border streams converging to center is exactly what even distribution looks like through a bottomless. The slight linger at balance 3 matches shot 5's spouted result — this is a consistent signal on this bean, not a prep artifact. Worth noting: the minor splashing is normal for a ristretto pull on a naked PF, not a channeling flag.

The One Thing to Change

Go 1 click finer — grind 37. Hold dose and yield target. Keep the right-side WDT bias you established this shot.

Flow was clean and even, so the slight linger isn't a prep issue — it's a mild extraction gap. The border-to-center merge confirms distribution was solid. With prep confirmed good on the naked PF, one small grind step finer is the right move now. The linger has shown up across shots 4 and 5 consistently, which earns a grind adjustment.

Bean Context

Sidra de Luz is a malic-acid-forward bean with genuine brightness baked into its profile — some of what you're tasting is the bean, not under-extraction. But the slight linger across two consecutive shots (vs. the immediate resolution in shots 2–3) is a real pattern. At 24 days post-roast it's squarely in peak window. The double-fermentation washed process adds complexity that can read as lingering brightness at the edge of extraction — one click finer should help without pushing bitter.

Progress

The naked PF debut is a genuine step forward — clean border-to-center flow on your first attempt means the WDT angle adaptation worked. You now have a reliable visual diagnostic tool for every shot going forward.
Cached · Sep 20

Bean

Roaster4 Letter Word
BeanColombia Sidra de Luz
Days Since Roast24 days — Peak window
Roast Date2026-08-27