Coffee is weak or watery even on the strongest setting

Safety first: Turn the machine off before adjusting internal components. Do not insert fingers into the grinder.

Step 1 – Adjust grinder:

• While the grinder is running during a coffee preparation, turn the grind adjustment knob one step finer (toward 'fine').
• Make small adjustments and test after 2–3 cups.

Step 2 – Increase strength setting:

• Use the machine menu to select a higher coffee strength or aroma level.
• Ensure the volume (ml/oz) is not set excessively high for a single shot.

Step 3 – Clean brew group and screen:

• Remove and rinse the brew group (if user-removable).
• Use a Jura cleaning tablet cycle to remove coffee oils from the brew chamber and screen.

Step 4 – Service grinder (advanced):

• If coffee remains weak even at fine settings, the burrs may be worn.
• Have the grinder burrs replaced or the grinder assembly serviced by a Jura technician.