How do I adjust my grind size for an AeroPress?
For an AeroPress, start with a medium-fine grind, similar to table salt. If your coffee tastes sour or weak, adjust to a finer grind to increase extraction. If it tastes bitter or is difficult to press, use a coarser grind. Because the AeroPress is a versatile immersion brewer, you can easily experiment to find your preference.
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The AeroPress is one of the most forgiving and versatile pieces of coffee gear available, largely because it combines immersion brewing with a pressurized finish. Unlike a pour-over, where the grind size is strictly dictated by the flow rate of the filter, the AeroPress allows you to manipulate extraction through both grind size and contact time. This makes it an excellent tool for dialing in the perfect cup.
When adjusting your grind, think about the relationship between surface area and extraction. A finer grind increases the surface area of the coffee, allowing water to extract flavors more quickly. If you are using a standard recipe—such as 15 grams of coffee to 200 grams of water—and the result is sour, it means you are under-extracting. Moving your grind setting one or two clicks finer will increase the extraction yield and bring out more sweetness and balance.
Conversely, if you find that the coffee is bitter, astringent, or difficult to push through the filter, you are likely over-extracting. This is common if your grind is too fine, as it creates too much resistance. In this case, move your grind setting coarser. The AeroPress is unique because you can also adjust your brew time; if you want to keep your grind size the same but need more extraction, simply let the coffee steep for an extra 30 seconds before pressing.
In practice, the best way to adjust your grind for the AeroPress is to keep your water temperature and dose constant while changing only the grind size. Start with a medium-fine setting. If the cup is not to your liking, make a small adjustment and brew again. Because the AeroPress is so efficient, you can quickly iterate until you find the grind size that highlights the specific of your coffee. Whether you prefer a bright, tea-like cup or a heavy, espresso-style shot, the AeroPress grind adjustment is your primary tool for control.
- ·https://www.ncausa.org/about-coffee/how-to-brew-coffeeVerify source for reference 1 ↗
- ·https://www.aboutcoffee.org/brewing/pour-over-coffee/Verify source for reference 2 ↗