Espresso Puck Preparation
Good espresso puck preparation means putting a consistent dose into a dry basket, distributing the grounds evenly, and tamping level. The purpose is to reduce easy paths for water through the coffee so that grind adjustments produce more predictable results.
Start with a dose that fits
Weigh the coffee instead of judging the mound by eye. Use the basket maker's recommended capacity as your starting point and leave appropriate headspace below the shower screen. Different roasts occupy different volumes at the same weight; our roast level and basket capacity guide explains why.
Distribute before you compress
Move coffee out of dense piles and into gaps before tamping. Fine-needle distribution can break up clumps throughout the bed. A surface-leveling tool may make the top look tidy without fixing uneven density below it.
Keep the basket dry during preparation. Pouring water onto loose grounds before tamping is not a standard substitute for distribution. Machine pre-infusion happens after the prepared portafilter is locked in and serves a different purpose.
A repeatable preparation sequence
- Clean and dry the basket.
- Weigh and grind the chosen dose.
- Distribute through the bed, including the edges.
- Settle gently if necessary, then tamp straight down until the bed is compressed.
- Lift the tamper cleanly and wipe loose grounds from the rim.
- Lock in gently and brew to your target beverage weight.
What to change when shots vary
Keep dose and preparation steady while dialing in grind size. Do not use a harder tamp to compensate for a coarse grind. For spraying or erratic flow, check channeling causes before adding more accessories.
A suitable espresso grinder makes fine adjustments possible, but an elaborate tool routine cannot make an unsuitable grind work. Compare several shots at the same recipe, including how they taste, before deciding whether a new preparation step helps.
