FIRST CRACK

Roast better.

Coffee roasting software that meets you where you are. Log roasts by hand, live in your browser, by importing from Artisan, or connected directly to your Kaleido or Croaster via Bridge. Every roast gets the same instant feedback: defects flagged on the curve, consistency tracked over time.

Why import at all

You've wanted feedback. Now every roast gives it.

Not AI guesswork — an assessment on the axes roasters already trust.

How roast analysis works →
RoR crash after first crack

Rate of rise dived to 6°F/min around 9:15 — 11°F/min below where it sat at first crack.

Ease the heat before first crack so the rise glides down through development.

From one roast

Instant defect read

Crashes and bakes, flagged on the curve.

72/100
Dialed inTight across 5 roasts of the same bean.

From many

Consistency you can measure

How tightly your repeats land — scored.

Side by side

See it, overlaid

Four roasts, overlaid. Read at a glance.

See a live comparison →

Four ways to roast with First Crack

Every roast, in one place

Four ways in. One library.

From the bench roaster typing temps on paper to the production setup streaming over USB, First Crack meets every roaster where they are and puts every roast on the same chart.

01Manual roast

Log what you tracked on paper.

Some roasters can't talk to a computer: no probe interface, no USB. That doesn't mean you skip the data. Type the temps and times you watched, hit save, and you get the same phase analysis as any hardware-captured roast.

New roast · manual logno hardware
Roast name
Ethiopia Guji · Mar 14
Roast date
2026-03-14
Green weight
250 g
Roasted weight
212 g
Total time
10:42
Drop temp
420°F
First crack
8:14 @ 385°F
DTR
22%
Loss
15.2%
Level
City+
02Guided Roast

Roast in the Browser. No Hardware Required.

A real-time HUD that takes typed probe readings and event taps. Auto phase detection, RoR computed inline, numpad-first logging. No install needed; it works in any browser on any drum with a thermometer.

00:00
Elapsed
Charge temp
°F

Type a charge temp · Enter or tap Charge

03Artisan import

Import a roast. Get feedback in seconds.

Drop an .alog file — we auto-detect your BT and ET probes, parse events, and derive missing metrics. Then every imported roast gets the same instant read as a live one: crash and bake defects on the curve, and consistency once you've got a few of the same bean. Your whole history, finally analyzed.

Import Artisan roast
Drop an .alog file
or click to browse
Temperature channels
Channel 1 · BTSuggested
start 75°F · peak 420°F · avg 285°F
Channel 2 · ET
start 92°F · peak 478°F · avg 410°F
Time
10:42
FC
385°F
Drop
420°F
04Live Roast — Bridge

Stream every degree, automatically.

If you roast on a Kaleido M-series or Croaster, Bridge talks directly to your hardware. Live BT, ET, RoR, automatic phase detection, event keyboard, 1 Hz cloud sync. Native macOS and Windows.

Live Roast — reference curve10:00 light-medium
Bean380°
ChargeDrop 420°
Env340°
RoR0°/min
Recipe · Ethiopia light-mediumAuto-roast armed
1CHARGE
Heat 80%Fan 30%
2BT ≥ 300°F
Heat 60%
35:00
Fan 55%
4FC START
Heat 40%Fan 70%
5BT ≥ 415°F
Drop

Recipes & automation

Dial in the roast once. Let Bridge run it.

Build a recipe from triggers and setpoints — when bean temp hits 300°F, ease the heater to 60%; at five minutes, open the fan. On your next Live Roast, Bridge fires every step automatically. Repeatable curves without babysitting the dials.

Trigger on anything
Fire steps off bean temp, elapsed time, rate of rise, or a roast event.
Drive the hardware
Each step sets heater, fan, and drum, or just drops a note for you.

Color development

Measure the color you actually roast.

Phone-camera Agtron scoring with color science. Photograph your beans against a gray card, get a calibrated score on the industry-standard 0–100 scale. No spectrometer required.

Gray card calibration
Reference card corrects for lighting and white balance, accuracy within ±5 pts.
Industry-standard 0–100
Compare your roast color against any roaster's notes, anywhere in the world.
Agtron score
63
Medium roast
Light · 100Dark · 0
95Light
75Med Light
55Medium
35Med Dark
18Dark
Gray card · high confidence

Start where you are.

The web app is free: analytics, inventory, cupping, community. Bridge connects your Kaleido or Croaster when you're ready. Both funnel into the same library.