AeroPress Calculator

Most recipes fall between 1:12 and 1:15 for a concentrated brew you can drink straight or dilute, though some longer-steep recipes go as light as 1:17.

There's no single official ratio — AeroPress is flexible enough to support a wide range of styles.

Both produce good coffee; the difference is mainly in steep control and cleanup.

Inverted (brewing upside down, then flipping) keeps the grounds from dripping through before you're ready to press, giving more control over steep time.

Standard is simpler and has no flip step, which is easier for a quick brew.

Steady, moderate pressure over about 20-30 seconds, stopping as soon as you hear a hissing sound — that's air pushing through the nearly-empty chamber, and pressing further just adds bitter, over-extracted compounds without more coffee.

Paper (the standard AeroPress filter) gives a cleaner, lighter-bodied cup with less sediment; a reusable metal filter lets more oils and fine particles through for a heavier, French-press-like body.

Neither is more "correct" — it's a style preference.

A common dose is 15-18 g of coffee.

At 1:15, 15 g takes 225 ml of water, and 18 g takes 270 ml.

Enter your dose above for the exact water and bloom amounts.

Medium-fine is a good starting point, finer than pour-over and coarser than espresso.

Shorter steeps suit a finer grind and longer steeps a slightly coarser one.

If it tastes sour, grind finer or steep longer; if bitter, go coarser.