Aero press grind size guide: Ultimate Brewing Guide & Expert Tips (2026)

Aero Press Grind Size Guide

Discover the perfect grind size for your Aero Press to achieve a rich, creamy, and balanced cup of coffee. This guide will help you master the brewing technique and extract the best flavors from your beans.

Overview & Background

The Aero Press is a versatile and popular manual coffee maker known for its ability to produce smooth and flavorful coffee. The key to its success lies in the grind size, which plays a crucial role in determining the extraction time and the overall taste of your cup. Choosing the right grind size can transform your brewing experience, ensuring a balance between bitterness and flavor.

Key Brewing Parameters / Specs

• Grind Size: Medium to coarse
• Water Temperature: 92°C - 96°C (198°F - 206°F)
• Grind Amount: 18g for a 12oz pour-over
• Extraction Time: 2-4 minutes

Step-by-Step Guide

1. Grind the Coffee: Use a burr grinder to grind your coffee beans to a medium to coarse consistency. A good rule of thumb is to aim for a grind size similar to sea salt.
2. Preheat the Aero Press: Rinse the Aero Press with hot water and discard. This helps to reduce the heat loss during brewing.
3. Add the Grind: Measure 18g of coffee and add it to the chamber of the Aero Press.
4. Measure Water: Pour 250ml of hot water (92°C - 96°C) over the coffee in a circular motion, making sure to wet all the grounds evenly.
5. Stir: Use a spoon to gently stir the mixture for about 10 seconds to ensure even saturation.
6. Insert the Plunger: Place the plunger on top of the chamber and push it down slowly until it reaches the first resistance.
7. Wait: Allow the mixture to sit for 2 minutes without pressing down further.
8. Press Down: Push the plunger down fully to separate the grounds from the liquid.
9. Serve: Pour the coffee into your cup and enjoy.

Pro Tips & Common Mistakes

• Consistent Grind Size: Inconsistent grind size can lead to over-extraction or under-extraction. Ensure your grinder is set to a medium to coarse grind.
• Correct Water Temperature: Water that is too hot can over-extract the coffee, while water that is too cold can under-extract it. Aim for 92°C - 96°C.
• Avoid Over-Stirring: Stirring too vigorously can introduce air into the mixture, leading to a foamy texture. A gentle stir for 10 seconds is sufficient.
• Do Not Over-Push the Plunger: Pushing the plunger too quickly or forcefully can lead to a bitter taste. Allow the mixture to sit for 2 minutes before pressing down slowly.