How to prepare an AeroPress correctly: Step-by-step recipe
by Franz Morish
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How to prepare an AeroPress correctly: Step-by-step recipe for Leipzig & surrounding area
At Franz Morish – your coffee roastery in Leipzig – we love the AeroPress for its clarity, flexibility, and reliability. It's lightweight, robust, and brews barista-quality specialty coffee – at home, in the office, or on the go along the Elster River. Here you'll find our comprehensive AeroPress guide, including an inverted AeroPress recipe, fine-tuning tips, troubleshooting advice, and local recommendations for Leipzig and the surrounding area.
What is an AeroPress?
Structure and Function
The AeroPress consists of two cylinders (brew chamber and plunger), a filter cap, and a paper or metal filter. Brewing is done manually with moderate pressure: After a short extraction, you slowly press the plunger down, forcing the water through the coffee grounds and filter into your cup. The result: a clean, aromatic coffee with variable intensity – depending on the recipe and grind size.
Advantages over hand filter and French press
- Flexible recipes: leeway in ratio, steeping time and stirring technique – from clear to full-bodied.
- Quick & easy: Your mug is ready in minutes; cleaning takes seconds.
- Mobile & robust: Perfect for travel, office or picnic – AeroPress on the go is a real plus.
- Consistent quality: Bitter substances can be controlled through short contact time and moderate pressure.
Who is the AeroPress suitable for?
For specialty coffee enthusiasts who appreciate precise, repeatable results – and for beginners seeking a straightforward, reliable method. You can bring out delicate, fruity filter roasts just as easily as chocolatey profiles with more body.
Which coffee is best?
Roast level & origin (specialty coffee in focus)
We recommend light to medium filter roasts from transparent, sustainable sources. Ethiopian naturals offer floral, berry notes; washed coffees from Colombia or Kenya often display citrus, stone fruit, and clarity. Medium-light Central American blends deliver sweetness, nuttiness, and chocolate – ideal as an everyday coffee.
Grind size: medium to fine explained
When preparing coffee with an AeroPress, start with a medium-fine grind – about the consistency of fine table salt. A grind that's too fine will extract faster and more intensely (more body, but also a risk of bitterness); a slightly coarser grind will produce more clarity and lightness. Adjust in small increments and note your settings.
Freshness of the beans and water quality
Freshly roasted beans (ideally 2–8 weeks after roasting) develop the best aroma. Store them airtight, in a dark, cool place. For water, a brewing temperature of 92–94 °C and medium total hardness are a good starting point. Water that is too hard will reduce acidity and sweetness; water that is too soft can taste flat. A filter (e.g., activated carbon/ion exchange) helps to achieve the right balance.
Equipment check
AeroPress with paper or metal filter
- Paper filters: Clear, lightweight cups with high transparency; retains oils.
- Metal filter: Allows more oils to pass through, adding body and texture; minimally more sediment.
Tip: For fruity filter roasts, we often choose paper; for chocolatey, strong profiles, metal can be appealing. Ultimately, "paper filter vs. metal filter" is a matter of taste – try both.
Mill, scales, kettle with temperature display
- Mill: A good hand or electric mill with a consistent grind is essential.
- Scales: Precise dosing (coffee & water) ensures reproducibility.
- Kettle with temperature display: Maintains a stable 92–94 °C for consistent results.
AeroPress Recipe: Step-by-Step (inverted)
Our tried-and-tested AeroPress recipe (inverted) – ideal for beginners, reliably reproducible and easy to adjust. Basic ratio close to 1:15: 15 g coffee to 230 ml water.
Insert the filter and rinse with hot water.
Place the paper or metal filter in the cap and rinse it thoroughly with hot water. This removes any papery residue, heats the brewing vessel, and improves the seal.
Place the AeroPress upside down and fill it with 15g of coffee.
Place the AeroPress upside down: piston at the bottom, brewing chamber at the top. Fill with 15 g of medium- to finely ground coffee and shake the chamber gently to distribute the coffee grounds evenly.
Pour in 230 ml of water (92–94 °C), stir briefly.
Start the timer. Quickly pour up to 230 ml (92–94 °C) so that everything is coated. Stir gently for 5–8 seconds, replace the rinsed filter cap and close it.
Let it steep for 1:30–2:00 minutes, then press gently.
After 1:30–2:00 minutes, turn the AeroPress upside down over your cup and press evenly for 20–30 seconds. Stop as soon as you hear a hissing sound – this prevents over-extraction of residual water.
Troubleshooting: too bitter, too sour, too fast/too slow
- Too bitter/tart: Grind coarser, temperature closer to 92 °C, reduce brewing time by 10–15 seconds, stir less.
- Too sour/thin: Grind a little finer, temperature 94 °C, extend brewing time by 10–20 seconds, stir gently for 1–2 seconds afterwards.
- Too fast: Grind finer or stir longer; check the seal and the even pressure during pressing.
- Too slow/stuttering: Grind coarser, less stirring, try a metal filter (more flow), don't press until the last drop.
Variants & Fine-tuning
Standard method vs. inverted
Standard (classic, filter at the bottom): Simple, clean, less risk when turning. Inverted: Maximum control over brewing time and turbulence; ideal if you want to experiment with bloom and stirring techniques. For fruity roasts, we often prefer inverted for more sweetness and balance.
Recipe variations (1:14 to 1:17, bloom & stirring technique)
- Coffee ratio 1:14: More body and sweetness, denser mouthfeel.
- 1:15 (Base): Balanced clarity, sweetness and texture – our standard.
- 1:16–1:17: Higher clarity, lighter cup, fine acidity.
Bloom: First pour on 2–3 times the amount of coffee (e.g., 30–45 ml), wait 20–30 seconds, then fill completely. Stirring: A short, gentle stir ensures clarity; a slightly more intense stir (e.g., 10–12 seconds) increases extraction and body.
AeroPress over ice: Summer version
Fill a glass with 120–150 g of ice cubes. Brew a more concentrated AeroPress (e.g., 18 g to 200 ml, 92–94 °C, 1:30–2:00 minutes) and press directly over the ice. The result: fresh, clear, vibrant – perfect for hot days in Leipzig.
Avoid common mistakes
Incorrect grind
The most common stumbling block. Adjust the grind finer/coarser in small increments until sweetness, clarity, and mouthfeel are in harmony. Note your grinder settings to ensure reproducibility.
Inappropriate water temperature
Above 95°C you risk bitterness; below 90°C it often becomes bland. Keep the temperature constant at 92–94°C. A kettle with a temperature display is a worthwhile investment.
Filter not rinsed
Essential for clean cups: Rinsing removes paper aromas, tempers the water, and improves the seal of the cap.
FAQ about the AeroPress
What grind size is ideal for the AeroPress?
Medium to fine. Start with a grind similar to fine table salt. If the coffee becomes bitter, grind coarser; if it is watery or too acidic, grind slightly finer.
What is a reliable basic recipe?
Inverted brewing method: 15 g coffee, 230 ml water at 92–94 °C. Rinse filter, add coffee, pour on water, stir, let it steep for 1:30–2:00 min and press evenly.
Paper or metal filters: Which is better?
Paper cups produce clear, light roasts and retain oils. Metal cups allow more oils to pass through, resulting in more body. Paper cups are often used for fruity filter roasts, while metal cups are used for stronger profiles.
How do I adapt the recipe to my taste?
For more sweetness/body: try a slightly finer grind or a 1:14 ratio. For more clarity: try a slightly coarser grind or a 1:16–1:17 ratio. Carefully adjust the brewing time by ±15–20 seconds.
If you want to delve deeper: Try the basic recipe with three different beans, experiment with ratios from 1:14 to 1:17, and compare paper vs. metal brewing methods. Share your results with us – we love exchanging ideas in Leipzig's specialty coffee community. Further reading: Extraction basics, water chemistry for home use, and our tips on comparing hand filters and French presses.