The Roastery Lab · Instruments

Open Instruments

Every instrument, interactive — organized by the work it does.

A library to explore, not the place you work. Each instrument runs on Pacific Roots reference data or clearly-tagged sample data; when you're ready to track your own coffee, the Workbench is where it happens.

Learn. Public, educational instruments — the science made legible.

Curve Anatomy Walkthrough

Field

Step the reference profile; learn the chemistry at each event.

Approved target

Anatomy of a curve — Summit Blend referenceevery temperature verified · lab/science.md

Stop 1 / 5Drying phase

Charge — the beans meet the fire

Cold green hits the hot drum and the probe reads a steep plunge — that dip isn't the beans cooling, it's the sensor finding them. The roast starts endothermic: from here, water leaving the bean will cool it faster than any reaction warms it.

Charge · 0:00 · 385°F

step the roast

Ridgeline Index

Field

The seven roasts as a mountain range; each peak opens its report.

Approved target

Phase Balance

Field

Drying / Maillard / Development split — the intent of each roast.

Approved target

Basecamp Roast
45%41%14%
10:16
Coastal Fog
47%41%12%
9:07
Sierra Sunrise
45%41%14%
9:56
Highland Trail
44%40%16%
10:34
Summit Blend
45%41%14%
9:47
Nightfall
43%39%18%
11:00
Pacific Decaf
45%41%14%
9:28

DryingMaillardDevelopmentDerived from the production-sheet event anchors — no new numbers.

Event Atlas

Field

The line ranked by any metric — small-multiple curve cards.

Approved target

ranked low → high

Roast-Level Spectrum

Field

Level words made measurable — drop temp and weight loss.

Approved target

Drop temperature — where each roast lets go

Target weight loss — how much the fire keeps

House targets from the production sheets · the roast accent appears with its roast, identity carried by the labels.

Cupping Overlay

Field

Compare cupping targets across up to three coffees.

Approved target

2/3 selected

Cupping targets by axis for the selected roasts, 10-point scale
Axis	Coastal	Nightfall
Aroma	9.0	6.5
Acidity	8.0	2.0
Sweetness	6.5	6.0
Body	4.5	9.0
Clarity	9.5	4.0
Balance	7.0	7.0
Finish	8.0	9.0

Blind-cupped QC targets · 10-point scale · tuned by cupping, versioned per profile.

Rest-Window Planner

Field

When will this bag peak? Degassing science, made practical.

Approved target

Days since roastday 3

day 4day 8roast dayday 21

Basecamp windowEspresso window today

Degassing

1 more day to the window — the cup is still finding its shape.

Windows: 4–8 days post-roast · espresso 6–10 days. Tested rest days from the production sheets — experiment E-001 cups the curve at days 2–12 to keep them honest.

Extraction Bench

Field

Dose, ratio, and the brew-control compass.

Derived from your inputs

Stage 07 · The Extraction Benchgrams in · science out · nothing stored

Coffee dose — 22 g

Strength

Water temp: 195–205°F
Grind: Medium-fine · sea salt
Time: 2:45–3:30

1 : 16

352g

water in

≈ 1 cup finished

Est. extraction

20.5%

Est. strength

1.35% TDS

Bloom with 2× the coffee's weight for 30–45 s before the main pours.

The brew compass — sweet lives in the box

Development-Ratio Sandbox

Roaster

Drag the drop; learn the DTR tradeoff on a labeled teaching model.

Modeled

Teaching model — not a roast logSummit Blend anchors · one variable: the drop

Drag the drop point

Development time1:25

Development ratio14.5%

Modeled drop temp412°F

Brighter · lighter bodyDeeper · bittersweet

Longer development trades brightness for depth. The tick is Summit's cupping-tuned reference (14.5%) — where the house chose to stand.

← The Roastery Lab·The same instruments deepen from Field to Lab — one platform, three depths