Grind Size & Dose

Learn how grind size and dose work together to control extraction. We'll cover the relationship between these variables and how to adjust them for different coffees and desired outcomes.

18:22

Chapters

0:00 Introduction
2:00 Understanding Grind Size
6:30 The Role of Dose
10:00 Grind-Dose Relationship
14:00 Practical Demonstration
17:00 Summary & Next Steps

Practice Exercise

Practice Dial-In Exercise

Using your espresso setup, practice adjusting grind size while keeping dose constant:

Start with your normal dose (18-20g)
Pull a shot and note the time and taste
Adjust grind finer by 1-2 clicks
Pull another shot and compare
Continue until extraction time is 25-30 seconds

Goal: Understand how grind size affects flow rate and extraction.

Checklist

Weigh your dose accurately (±0.1g) Use a scale that reads to 0.1g
Pull first shot and record time Time from pump start to pump stop
Taste and note observations Is it sour (under-extracted) or bitter (over-extracted)?
Adjust grind and pull second shot Finer = slower, coarser = faster
Compare the two shots Which tastes more balanced?