OLLA ROAST LAB · ROAST WORKFLOW

A roast log that stays useful after drop.

Import a profile or record beside the roaster. Curve, events, controls, and cup results stay in one record.

iPad landscape · roast curve, RoR, events, and controls
OLLA Roast Lab showing a complete roast curve and rate of rise on iPad

FROM PROFILE TO CUP

One batch. Four useful stages.

A field notebook during the roast, an analysis bench after it. Built for home roasters, sample roasting, and small roast teams.

01

Import

Bring in a curve from supported software or a mapped text file.

02

Record

Punch events and log gas, airflow, drum speed, and BT.

03

Review

Replay temperature and RoR, compare profiles, set a reference.

04

Connect

Carry the batch into inventory, bean cards, cupping, and reports.

IMPORT · LOCAL PARSERS

Use the curves you already own.

Parsing runs on the device: delimiters, time axes, temperature units, events, and channels are detected automatically. Uncertain mappings are left for you to confirm, never guessed. Thirty-five roaster models ship inside, each spec traced to the vendor's own documentation — pick yours and the formats it actually writes rank first.

Artisan JSONFull curves and events
Artisan .alogNative saved roast
Artisan CSVMilestones and tabular data
Giesen Profiler CSVHeader-aware import
ROEST CSVCurves and machine events
IKAWA CSVStates and temperature channels
Loring CSVTemperature-scale detection
Kaleido CSVSectioned log and events
CSV · TSV · TXTMap time and temperature columns

Source files and second-by-second samples are not uploaded to OLLA servers.

Free Roast Viewer

LIVE BATCH · IPHONE + IPAD

Built for the moments when timing matters.

Large targets keep actions close. Events save immediately; the roast clock uses absolute timestamps.

  • Charge, turning point, yellow, first crack, and drop markers
  • Gas, airflow, drum speed, bean temperature, and batch notes
  • Drying, Maillard, development, DTR, total time, and weight loss
  • Green-coffee deduction, roasted output, and bean-card creation

CURVE MEMORY · COMPARISON

Replay the curve. Make the next batch more deliberate.

Temperature and RoR share one timeline. Scrub anywhere, or follow a reference curve and live ghost.

  • Playback, speed control, and cursor BT / RoR readouts
  • Phase shading, event markers, and multiple temperature channels
  • Reference overlays, event deviations, and live ghost
  • Three-batch comparison with PDF and PNG outputs

ROAST TO CUP · RTC

The record continues after the roaster stops.

Link the batch to a bean card, resting window, cupping sheet, brew logs, and an archivable report.

ROASTBEAN CARDCUPPINGBREWREPORT

OLLA BREW LAB · APP STORE

Keep the roast floor and the cup in one record.

Roast Lab is part of OLLA Brew Lab for iPhone and iPad. The app is available in English, Simplified Chinese, and Japanese.