Why the AeroPress is different
The AeroPress combines full immersion (like a French press) with pressure filtering (a gentle push through a paper filter). Immersion makes it forgiving — contact time is fully in your control, with no drainage rate to manage. The paper filter makes it clean — none of the sludge or heaviness of a metal mesh. That combination means almost any grind size can produce a good cup if you match the steep time to it.
The stock instructions — one scoop, water to the number 4, press immediately — produce a weak, diluted cup. The recipe below is closer to how the specialty coffee world actually brews with it.
The recipe
- Coffee: 16 g
- Water: 220 g at 90–92 °C
- Grind: Medium — like beach sand or sea salt
- Steep: 1 minute, then plunge slowly over 30 seconds
- Ratio: roughly 1:14
Standard method, step by step
1. Set up. Put a paper filter in the cap, twist it onto the chamber, and rinse with hot water — this removes papery flavour and preheats everything. Place it on a sturdy mug or server.
2. Add coffee and water. Add 16 g of medium-ground coffee, start your timer, and pour 220 g of water in about 15 seconds, making sure no dry pockets remain. Give it one gentle stir.
3. Insert the plunger. Rest the plunger just inside the rim without pressing. This creates a vacuum seal that stops the brew dripping through early.
4. Steep for 1 minute. Longer steeps extract more — if your cup tastes thin, extend to 90–120 seconds before changing anything else.
5. Press slowly. Plunge with steady pressure over about 30 seconds, stopping at the hiss. Pressing hard and fast forces bitter fines through the filter and into the cup.
The inverted method
Flip the AeroPress upside down (plunger in, chamber on top) and brew in the open chamber, then cap, flip onto your mug, and press. Inversion guarantees zero drip-through during the steep, which makes long immersion recipes more repeatable. It's worth trying if your standard brews taste inconsistent — just flip carefully with a mug that fits the cap snugly.
Espresso-style concentrate
For a short, intense cup (or the base of a latte): 20 g of coffee ground medium-fine, 100 g of water at 85–88 °C, stir, steep 45 seconds, press firmly. It isn't true espresso — there's no 9 bars of pressure — but it's a rich, concentrated shot that takes milk well.
Common problems
Weak or watery
The most common AeroPress complaint, and almost always ratio, grind, or steep time. We cover the full diagnosis in AeroPress coffee too weak — how to fix it.
Bitter
Grind coarser, drop your water temperature to 85–88 °C, or shorten the steep. Pressing too hard at the end also drives bitterness into the cup — stop at the hiss.
Sour
Under-extracted: grind finer, use hotter water (92 °C), or steep longer. Sourness with a very short total brew time is the classic sign.