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Tamping Technique
How to tamp consistently for better espresso
Tamping is one of the most controllable variables in espresso. Done right, it creates an even, level puck that extracts uniformly.
Why tamping matters
Water always finds the path of least resistance. If your coffee puck is uneven, water will channel through the loose areas and bypass the dense areas, resulting in an inconsistent extraction. A level, firm tamp ensures water flows evenly through the entire puck.
Distribute before you tamp
Before tamping, level the grounds in the basket using a distribution tool or WDT (Weiss Distribution Technique) needle tool. This breaks up clumps and creates a uniform density. Tamping an unevenly distributed puck will lock in the inconsistency.
Tamp level and firm
Apply firm, even downward pressure — typically 15–20kg of force. The exact pressure matters less than consistency and levelness. Keep your wrist straight, elbow at 90 degrees, and press straight down. Do not twist or rock the tamper.
Check for levelness
Look at the rim of the portafilter after tamping. The surface of the puck should sit at an even depth all the way around. If one side is lower, it means your tamp was off-centre. A precision tamper with a calibrated depth stop can help eliminate this.
Do not over-tamp
More pressure is not always better. Beyond a certain point, additional pressure has minimal effect on extraction and can make it harder to build consistent force. Focus on levelness rather than maximum force.
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