Roasting Log & Community

Turn raw heat
into shared mastery.

Log every batch, study every curve, and trade insights with roasters around the world. Stop losing your best roasts in scattered spreadsheets.

Active roasters
2,847
Profiles logged
18.4k
Avg DTR
22.1%

Sample roast curve

Bean TempAir TempBean RoRAir RoR
Temperature (°C)RoR (°C/min)80°120°160°200°240°-750+7500:0002:0004:0006:0008:0010:0012:00Time (mm:ss)

Bean, Air, and RoR plotted against time.

The Ledger · Core

Built for the way
roasters actually think.

01 / LOGGING

Basic

Log every batch, study every curve, and trade insights with roasters around the world. Stop losing your best roasts in scattered spreadsheets.

02 / ANALYSIS

Temperature

Bean, Air, and RoR plotted against time.

03 / CALCULATORS

Roasting calculator

Charge temperature

04 / COMMUNITY

Community

Active discussions

For whom

Who is this for?
three kinds of roasters.

01 / Individual

Personal roasters

자신의 로스팅 데이터를 기록하고, 나만의 곡선을 다듬어 가는 홈 로스터를 위한 공간.

02 / Education

Schools & training

교육 과정과 실습 기록을 위한 일관된 형식. 학생과 강사가 같은 데이터를 공유합니다.

03 / Business

Roasteries & teams

팀 단위 로스팅 데이터 관리, 일관된 품질 관리와 레시피 공유를 한곳에서.