Problem Cause

Stale Coffee Beans

Coffee beans are past their peak freshness, having lost flavor and CO2

How to Identify This Issue

Ground texture and uniformity

Puck surface and distribution

Not sure if this is your issue?

Get a personalized diagnosis

Check the roast date on your coffee bag. Espresso is best 7-30 days after roasting. If older, consider fresh beans.

Expected Result

Better crema production, more vibrant flavors, easier dial-in.

Adjust your grinder to produce finer coffee particles. Make small adjustments (2-3 increments on most grinders) and pull a test shot.

Expected Result

Extraction time should increase by 3-5 seconds. Flavor should become more balanced with less sourness.