Preinfusion

Also known as pre-infusion · preinfusión · low-pressure prewet · préinfusion

What it is and what sets it apart: Distinct from pour-over bloom and bloom time. On profiled machines: short low pressure/flow.

How it’s used or measured: Run ~2–8 s typical; watch drip then ramp to brew pressure. Log seconds in Brew Lab.

Flavours and cup impact: Good: fewer channels, smoother start, sweetness. Too long: soggy puck, slow/bitter shots.

Technical notes: Not all machines have it; levers often do it naturally.

Common mistakes: Equating it with V60 bloom. Endless preinfusion. Using it to hide wrong grind.

In Cafesito

Save coffees to your pantry, brew with method and keep your diary.