The Best Starting-Point Grind Size for AeroPress
Medium-fine is a reliable general-purpose grind for AeroPress — a texture similar to fine table salt or dry sand, sitting between a fine espresso grind and a coarser standard drip grind. This holds true whether you’re using the standard (upright) method or the inverted method. For how that fits into the broader grind-size spectrum across other brew methods, see our coffee grind size guide.
That said, this is a starting point rather than a single fixed answer. The “right” grind for AeroPress shifts depending on your recipe’s steep time, water temperature, and the strength or flavor profile you’re after.
Why AeroPress Works with a Range of Grind Sizes
AeroPress combines two brewing mechanisms in one device: coffee steeps in contact with water (like immersion brewing), and then that brewed coffee is pushed through a paper or metal filter under gentle pressure (like filtration brewing). Because it relies on both mechanisms together, it tolerates a wider range of grind sizes than methods that depend entirely on one or the other — which is part of why you’ll see AeroPress recipes online using everything from fairly fine to fairly coarse grinds and still getting a drinkable result.
Adjusting Grind for Steep Time and Strength
As a general tradeoff: a finer grind extracts faster, so it pairs well with a shorter steep time, while a coarser grind extracts more slowly and suits a longer steep. If you’re using a quick, espresso-style AeroPress recipe (short steep, forceful press), a slightly finer grind closer to standard filter/espresso fineness tends to work better. If you’re using a longer steep (a minute or more before pressing), a slightly coarser grind — closer to standard drip or even light French press texture — helps avoid over-extracting a bitter cup.
There’s no need to chase one “correct” recipe — plenty of AeroPress enthusiasts land on different combinations of grind, steep time, and water temperature depending on whether they’re brewing a brighter, more acidic coffee or a sweeter, nuttier one.
Can You Use Regular Ground Coffee in an AeroPress?
Generally, yes. Standard pre-ground coffee sold for drip machines can be used in an AeroPress and will produce a drinkable cup. It’s usually a bit coarser than the ideal medium-fine AeroPress grind, though, so results tend to be slightly weaker or less consistent than a grind dialed in specifically for the AeroPress. If you grind your own beans, aiming for medium-fine specifically for AeroPress will generally give more consistent results than relying on coffee ground for another method.
Fixing a Cup That Tastes Off
- Sour or weak: Usually a sign of under-extraction. Try grinding finer, using hotter water, or extending the steep time slightly.
- Bitter or harsh: Usually a sign of over-extraction. Try grinding coarser, shortening the steep time, or using slightly cooler water.
- Muddy or gritty: Often from too fine a grind combined with a weak press, letting fine particles through the filter. Try a slightly coarser grind.
Making a Larger AeroPress Batch (2 Cups)
The same grind-size guidance applies whether you’re brewing one cup or two — scaling up is mainly about proportionally increasing your coffee dose and water, keeping the same ratio you’d use for a single cup. If your AeroPress is a standard-size model, check that your chamber can hold the larger water volume in one brew; otherwise, brewing two single-cup batches back to back, using the same grind and ratio each time, is a simple workaround. For more on working with ground coffee generally, see our guide on how to make ground coffee.
FAQs
Can I use regular ground coffee in an AeroPress? Yes — it works, though it’s usually coarser than the ideal medium-fine AeroPress grind, so the cup may come out slightly milder than with a dedicated grind.
What kind of ground coffee is best for AeroPress? A medium-fine grind — between espresso and standard drip coarseness — is the most reliable general-purpose choice, adjusted finer or coarser depending on your steep time and preferred strength.
How do I make 2 cups of coffee using an AeroPress? Scale your usual single-cup dose of coffee and water up proportionally, keeping the same ratio and grind size, and check that your AeroPress chamber can hold the larger water volume in one go.