How to Adjust Inner Burr

⚙️ How to adjust the inner burr on a Breville coffee machine

If your Breville espresso is running too fast, looking thin, or lacking crema even with the outside grind dial at its finest setting, the inner burr may need a small adjustment. This applies to many Breville machines, including the Barista Express, Barista Pro and Smart Grinder Pro.

☕ Before adjusting anything, make sure you are using freshly roasted beans. Beans older than around 30 days after roasting often make espresso run fast regardless of the grinder setting. Try our freshly roasted WA coffee beans.

🔧 Adjusting the inner burr

1. Empty the hopper and run the grinder until it is clear. Turn the machine off.
2. Set the outer grind dial to its coarsest setting, then unlock and remove the hopper.
3. Lift the wire handle on the conical burr and turn it anti-clockwise to unlock it. Remove the burr.
4. The usual factory setting is 6. Move it down one or two steps at a time — for example, to 5 or 4 — for a finer grind.
5. Refit the burr, turn it clockwise until the red arrow shows it is locked, then reinstall the hopper.
6. ✅ Test a shot and adjust gradually if needed. Small changes make a big difference.

To help keep grounds out of the grinder assembly, fit a Breville upper burr seal. If your grinder is making a loud BRRRR noise or will not grind at all, stop using it and contact Matt for repair advice.

✈️ Post your machine from anywhere in WA ✈️