How to Use an AeroPress: Step-by-Step Coffee Brewing Guide

If you’ve ever struggled to make a quick cup of coffee that actually tastes good—without a fancy machine or endless cleanup—this guide is for you. The AeroPress is one of the fastest, cleanest, and most forgiving ways to brew excellent coffee anywhere, whether you’re at home or in a small office kitchen. But to get that rich, smooth cup you’re after, you need the right technique, grind, and timing.

To brew a balanced, flavorful cup with your AeroPress, use 17g of medium-ground coffee, bloom with 50ml of 83°C water for 45 seconds, then add another 50ml, stir, press for 15–25 seconds, and dilute 1:1. Total brew time is around 60–75 seconds.

What Is an AeroPress and Why Use It?

The AeroPress is a compact, piston-style coffee maker that combines immersion and pressure brewing. It’s valued for producing clean, nuanced cups with low acidity and almost no bitterness. Unlike espresso machines or pour-over setups, the AeroPress is fast to set up, easy to clean, and works well with a wide range of coffee beans and roast levels. It’s ideal for making one or two cups quickly, especially in places where space or equipment is limited.

Why Grind Size and Freshness Matter

For best results with an AeroPress, use freshly roasted, high-quality coffee beans ground to a medium size. A medium grind—similar to table salt—allows for balanced extraction, drawing out sweetness, body, and subtle flavour notes without over-extracting bitter compounds. This grind works well with the AeroPress’s full-immersion style and short brew time. Avoid pre-ground coffee if possible, as freshness significantly impacts aroma and taste.

Step-by-Step: How to Brew Coffee with an AeroPress

1. Gather Your Equipment

You’ll need an AeroPress, a grinder, fresh coffee beans (17g recommended), a cup, and a kettle. Optional: a digital scale and timer for precision.

2. Rinse and Preheat the Filter

Insert the filter into the AeroPress cap, then rinse it with hot water. This removes any paper taste and preheats the brewing chamber. Discard the rinse water before proceeding.

3. Add Ground Coffee

Place the AeroPress on your cup, then add 17g of freshly medium-ground coffee. A standard AeroPress scoop (one rounded spoon) holds roughly this amount.

4. Start the Bloom

Start your timer. Pour 50ml (about 1/4 cup) of water at approximately 83°C over the grounds. Let it bloom for 45 seconds. This step releases trapped CO₂ and starts even extraction.

5. Stir the Bloom

After 45 seconds, gently stir the coffee grounds three times with a spoon or paddle to ensure all grounds are saturated and there are no dry clumps.

6. Add More Water

Pour an additional 50ml of water for a total of 100ml (about 1/2 cup). The water level should sit just above the second marking line inside the AeroPress chamber.

7. Attach the Filter and Plunger

While the coffee is brewing, screw the pre-wet filter and cap securely onto the AeroPress chamber.

8. Press the Coffee

At 60 seconds, gently turn the AeroPress on your cup to a 45° angle and give it a slight stir for 10 seconds. Then, apply steady, gentle pressure to the plunger. The full extraction (including pressing) should take between 15 and 25 seconds. Avoid forcing it or letting air escape through the sides.

9. Dilute to Taste

The resulting concentrate should be strong. For a balanced cup, dilute it with an equal amount of hot water (a 1:1 brew-to-water ratio). Alternatively, you can brew directly to your preferred strength without dilution.

What Makes This Method Work

This AeroPress method uses a medium grind, a moderate water temperature (83°C), a short bloom period, and a gentle press to produce a clean, well-rounded cup. The 45-second bloom lets gases escape for even saturation, while the two-part pour ensures full extraction. The final press time and dilution allow control over strength and body.

Frequently Asked Questions

What is the ideal coffee-to-water ratio for AeroPress?

This guide uses 17g of coffee and 100ml of water for the concentrate, then suggests diluting it 1:1 with water. That results in roughly a 1:2 brew ratio overall, common for balanced AeroPress coffee. You can adjust based on taste.

What grind size should I use for AeroPress?

Use a medium grind, similar to table salt. This works well for the immersion-style brewing and helps avoid over-extraction or under-extraction.

Why bloom the coffee for 45 seconds?

Blooming releases CO₂ trapped in freshly ground coffee, allowing for more even water flow and better extraction during the main brew phase.

What water temperature is best for AeroPress?

This method uses water at around 83°C. Slightly cooler than boiling helps prevent over-extraction and bitterness, especially with medium roasts.

How long should I press the AeroPress?

Pressing should take between 15 and 25 seconds once you start applying downward pressure. A slow, steady press creates cleaner flavour and avoids sludge or bitterness.

Do I have to dilute the AeroPress brew?

No, but diluting 1:1 with hot water balances strength and brings out more flavour clarity. You can also drink it undiluted if you prefer a stronger cup.

Recommended FrontStreet Coffee for AeroPress

For AeroPress brewing, try FrontStreet Coffee’s Ethiopia Humbera – a bright, juicy Ethiopian single origin with notes of blueberry and citrus. Also consider their Yirgacheffe offering, known for floral aromas and stone fruit sweetness. Both shine with the medium grind and 83°C water used in this method. For something richer, their Classic Blend provides chocolatey balance. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.