How to Roast Coffee
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Prologue — Getting Set Up
HTR 0.0 What's in the Prologue?
HTR 0.01 Roastery Essentials
HTR 0.02 Cyclones and Flues
HTR 0.03 Afterburners
HTR 0.04 Choosing a Roaster
HTR 0.04.1 Indirectly Heated Drum Roasters
HTR 0.04.2 Fluidised Beds and Spouting Beds
HTR 0.05 Choosing the Right Size of Machine
HTR 0.06 Accessories
HTR 0.07 Green Coffee Conditioning
HTR 0.08 Recap and Glossary
HTR 0.09 Comprehension Test
12 lessons, 1 quiz
Tuning Your Roaster
HTR 1.0 What’s in Chapter 1?
HTR 1.01 Why Tuning Comes First
HTR 1.02 Drum Speed
HTR 1.03 How to Adjust Drum Speed
HTR 1.04 Gas Supply
HTR 1.05 Tuning the Burner
HTR 1.06 Temperature Probes
HTR 1.07 Airflow
HTR 1.08 Controlling Airflow
HTR 1.09 Recap and Glossary
HTR 1.10 Comprehension Test – Chapter 1
11 lessons, 1 quiz
Machine Management
HTR 2.0 What’s in Chapter 2?
HTR 2.01 Batch Size
HTR 2.02 Calculating Yield
HTR 2.03 Warming up the Roaster
HTR 2.04 Between-Batch Protocol
HTR 2.05 Charge Temperature
HTR 2.06 Planning Your Roasting Day
HTR 2.07 Recap and Glossary
HTR 2.08 Comprehension Test – Chapter 2
9 lessons, 1 quiz
Roast Management
HTR 3.0 What’s in Chapter 3?
HTR 3.01 Roasting Time
HTR 3.02 Managing Gas Settings
HTR 3.03 Approaching First Crack
HTR 3.04 Fixing Crashes
HTR 3.05 Airflow Management
HTR 3.06 When to Drop a Batch?
HTR 3.07 Common Roasting Mistakes
HTR 3.08 Recap and Glossary
HTR 3.09 Comprehension Test — Chapter 3
10 lessons, 1 quiz
Reading Roast Curves
HTR 4.0 What’s in Chapter 4?
HTR 4.01 The Unmanaged Roast
HTR 4.02 Phases of the Roasting Profile
HTR 4.03 Roast Defects
HTR 4.04 Recap
HTR 4.05 Comprehension Test — Chapter 4
6 lessons, 1 quiz
Roasting Software and Automation
HTR 5.0 What’s in Chapter 5?
HTR 5.01 Software Setup
HTR 5.02 Advances in Automation
HTR 5.03 Recap
HTR 5.04 Comprehension Test — Chapter 5
5 lessons, 1 quiz
HTR Final Assessment
HTR 6.01 Final Assessment
1 lesson, 1 quiz
Roasting Software and Automation
HTR 5.03 Recap
Data-logging software allows users to visualise the roast in real time. The data can be used to improve consistency and to visualise patterns in the roast curves that can indicate roast defects.