Problem Cause

Coffee Beans Too Fresh

Beans are too freshly roasted and still degassing CO2 aggressively

How to Identify This Issue

Ground texture and uniformity

Puck surface and distribution

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If beans were roasted less than 5 days ago, wait a few more days before using. Light roasts need 10-14 days, dark roasts 5-7 days.

Expected Result

More stable extraction, better flavor development, easier to dial in.

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

Expected Result

Extraction time should decrease by 3-5 seconds. Flavor should become less bitter and harsh.